Ygtjki

Question

I bought a new keyboard similar to an old one. The old one works, the new one not. The new keyboard has an unusual HID Descriptor and sends one extra data byte. Is there a Linux driver which support such keyboard (descriptor)?

Communication log via cat /sys/kernel/debug/usb/usbmon/3u, byte sequences only (press A, release A; press Shift, press A, release A, release Shift sequence):

Non-working 9-byte keyboard communication:

00000400 00000000 71
00000000 00000000 71
02000000 00000000 71
02000400 00000000 71
02000000 00000000 71
00000000 00000000 71

Working old keyboard communication:

00000400 00000000
00000000 00000000
02000000 00000000
02000400 00000000
02000000 00000000
00000000 00000000

Bonus: What is the extra byte? (I always saw 0x71 there.)

HID Descriptors of the new keyboard via cat /sys/kernel/debug/hid/<interface>/rdesc:

Interface 0003:17EF:609B.0089:

05 01 09 06 a1 01 05 07 19 e0 29 e7 15 00 25 01 75 01 95 08 81 02 75 08 95 01 81 01 05 08 19 01 29 03 75 01 95 03 91 02 95 01 75 05 91 01 15 00 26 ff 00 19 00 2a ff 00 05 07 75 08 95 06 81 00 05 01 0a 68 01 15 80 25 7f 95 01 75 08 81 02 c0 

 INPUT[INPUT]
 Field(0)
 Application(GenericDesktop.Keyboard)
 Usage(8)
 Keyboard.00e0
 Keyboard.00e1
 Keyboard.00e2
 Keyboard.00e3
 Keyboard.00e4
 Keyboard.00e5
 Keyboard.00e6
 Keyboard.00e7
 Logical Minimum(0)
 Logical Maximum(1)
 Report Size(1)
 Report Count(8)
 Report Offset(0)
 Flags( Variable Absolute )
 Field(1)
 Application(GenericDesktop.Keyboard)
 Usage(256)
 LED.0000
 LED.NumLock
 LED.CapsLock
 LED.ScrollLock
 LED.Compose
 LED.Kana
 LED.0006
 LED.0007
 LED.0008
 LED.0009
 ... LED sequence left out
 LED.0049
 LED.004a
 LED.GenericIndicator
 LED.004c
 LED.004d
 LED.004e
 LED.004f
 ... LED sequence left out
 LED.00fd
 LED.00fe
 LED.00ff
 Logical Minimum(0)
 Logical Maximum(255)
 Report Size(8)
 Report Count(6)
 Report Offset(16)
 Flags( Array Absolute )
 Field(2)
 Application(GenericDesktop.Keyboard)
 Usage(1)
 GenericDesktop.0168
 Logical Minimum(-128)
 Logical Maximum(127)
 Report Size(8)
 Report Count(1)
 Report Offset(64)
 Flags( Variable Absolute )
 OUTPUT[OUTPUT]
 Field(0)
 Application(GenericDesktop.Keyboard)
 Usage(3)
 LED.NumLock
 LED.CapsLock
 LED.ScrollLock
 Logical Minimum(0)
 Logical Maximum(1)
 Report Size(1)
 Report Count(3)
 Report Offset(0)
 Flags( Variable Absolute )

Keyboard.00e0 ---> Key.LeftControl
Keyboard.00e1 ---> Key.LeftShift
Keyboard.00e2 ---> Key.LeftAlt
Keyboard.00e3 ---> Key.LeftMeta
Keyboard.00e4 ---> Key.RightCtrl
Keyboard.00e5 ---> Key.RightShift
Keyboard.00e6 ---> Key.RightAlt
Keyboard.00e7 ---> Key.RightMeta
LED.0000 ---> Sync.Report
LED.NumLock ---> LED.NumLock
LED.CapsLock ---> LED.CapsLock
LED.ScrollLock ---> LED.ScrollLock
LED.Compose ---> LED.Compose
LED.Kana ---> LED.Kana
LED.0006 ---> Sync.Report
LED.0007 ---> Sync.Report
LED.0008 ---> Sync.Report
LED.0009 ---> LED.Mute
LED.000a ---> Sync.Report
LED.000b ---> Sync.Report
... Sync.Report lines left out
LED.0017 ---> Sync.Report
LED.0018 ---> Sync.Report
LED.0019 ---> LED.?
LED.001a ---> Sync.Report
LED.001b ---> Sync.Report
... Sync.Report lines left out
LED.0025 ---> Sync.Report
LED.0026 ---> Sync.Report
LED.0027 ---> LED.Sleep
LED.0028 ---> Sync.Report
LED.0029 ---> Sync.Report
... Sync.Report lines left out
LED.0049 ---> Sync.Report
LED.004a ---> Sync.Report
LED.GenericIndicator ---> LED.Misc
LED.004c ---> LED.Suspend
LED.004d ---> LED.?
LED.004e ---> Sync.Report
LED.004f ---> Sync.Report
... Sync.Report lines left out
LED.00fe ---> Sync.Report
LED.00ff ---> Sync.Report
GenericDesktop.0168 ---> Absolute.Misc
LED.NumLock ---> LED.?
LED.CapsLock ---> LED.?
LED.ScrollLock ---> LED.?

Interface 0003:17EF:609B.008B:

05 0c 09 01 a1 01 85 01 19 00 2a 3c 02 15 00 26 3c 02 95 01 75 10 81 00 05 01 0a 68 01 15 80 25 7f 95 01 75 08 81 02 c0 05 01 09 80 a1 01 85 02 19 81 29 83 15 00 25 01 75 01 95 03 81 02 95 05 81 01 05 01 0a 68 01 15 80 25 7f 95 01 75 08 81 02 c0 06 01 ff 09 01 a1 01 85 05 95 07 75 08 15 00 26 ff 00 09 20 b1 03 c0 

 INPUT(1)[INPUT]
 Field(0)
 Application(Consumer.0001)
 Usage(573)
 Consumer.0000
 Consumer.0001
 Consumer.0002
 Consumer.0003
 Consumer.0004
 ... Consumer sequence left out
 Consumer.0235
 Consumer.0236
 Consumer.0237
 Consumer.HorizontalWheel
 Consumer.0239
 Consumer.023a
 Consumer.023b
 Consumer.023c
 Logical Minimum(0)
 Logical Maximum(572)
 Report Size(16)
 Report Count(1)
 Report Offset(0)
 Flags( Array Absolute )
 Field(1)
 Application(Consumer.0001)
 Usage(1)
 GenericDesktop.0168
 Logical Minimum(-128)
 Logical Maximum(127)
 Report Size(8)
 Report Count(1)
 Report Offset(16)
 Flags( Variable Absolute )
 INPUT(2)[INPUT]
 Field(0)
 Application(GenericDesktop.SystemControl)
 Usage(3)
 GenericDesktop.SystemPowerDown
 GenericDesktop.SystemSleep
 GenericDesktop.SystemWakeUp
 Logical Minimum(0)
 Logical Maximum(1)
 Report Size(1)
 Report Count(3)
 Report Offset(0)
 Flags( Variable Absolute )
 Field(1)
 Application(GenericDesktop.SystemControl)
 Usage(1)
 GenericDesktop.0168
 Logical Minimum(-128)
 Logical Maximum(127)
 Report Size(8)
 Report Count(1)
 Report Offset(8)
 Flags( Variable Absolute )
 FEATURE(5)[FEATURE]
 Field(0)
 Application(ff01.0001)
 Usage(7)
 ff01.0020
 ff01.0020
 ff01.0020
 ff01.0020
 ff01.0020
 ff01.0020
 ff01.0020
 Logical Minimum(0)
 Logical Maximum(255)
 Report Size(8)
 Report Count(7)
 Report Offset(0)
 Flags( Constant Variable Absolute )

Consumer.0000 ---> Sync.Report
Consumer.0001 ---> Key.Unknown
Consumer.0002 ---> Key.Unknown
... Key.Unknown lines left out
Consumer.002e ---> Key.Unknown
Consumer.002f ---> Key.Unknown
Consumer.0030 ---> Key.Power
Consumer.0031 ---> Key.Restart
Consumer.0032 ---> Key.Sleep
Consumer.0033 ---> Key.Unknown
Consumer.0034 ---> Key.Sleep
Consumer.0035 ---> Key.KbdIlluminationToggle
Consumer.0036 ---> Key.Btn0
Consumer.0037 ---> Key.Unknown
Consumer.0038 ---> Key.Unknown
... Key.Unknown lines left out
Consumer.003e ---> Key.Unknown
Consumer.003f ---> Key.Unknown
Consumer.0040 ---> Key.Menu
Consumer.0041 ---> Key.Select
Consumer.0042 ---> Key.Up
Consumer.0043 ---> Key.Down
Consumer.0044 ---> Key.Left
Consumer.0045 ---> Key.Right
Consumer.0046 ---> Key.Esc
Consumer.0047 ---> Key.KPPlus
Consumer.0048 ---> Key.KPMinus
Consumer.0049 ---> Key.Unknown
Consumer.004a ---> Key.Unknown
... Key.Unknown lines left out
Consumer.005e ---> Key.Unknown
Consumer.005f ---> Key.Unknown
Consumer.0060 ---> Key.Info
Consumer.0061 ---> Key.Subtitle
Consumer.0062 ---> Key.Unknown
Consumer.0063 ---> Key.VCR
Consumer.0064 ---> Key.Unknown
Consumer.0065 ---> Key.Camera
Consumer.0066 ---> Key.Unknown
Consumer.0067 ---> Key.Unknown
Consumer.0068 ---> Key.Unknown
Consumer.0069 ---> Key.Red
Consumer.006a ---> Key.Green
Consumer.006b ---> Key.Blue
Consumer.006c ---> Key.Yellow
Consumer.006d ---> Key.Zoom
Consumer.006e ---> Key.Unknown
Consumer.006f ---> Key.BrightnessUp
Consumer.0070 ---> Key.BrightnessDown
Consumer.0071 ---> Key.Unknown
Consumer.0072 ---> Key.?
Consumer.0073 ---> Key.BrightnessMin
Consumer.0074 ---> Key.BrightnessMax
Consumer.0075 ---> Key.BrightnessAuto
Consumer.0076 ---> Key.Unknown
Consumer.0077 ---> Key.Unknown
... Key.Unknown lines left out
Consumer.0080 ---> Key.Unknown
Consumer.0081 ---> Key.Unknown
Consumer.0082 ---> Key.?
Consumer.0083 ---> Key.Last
Consumer.0084 ---> Key.Enter
Consumer.0085 ---> Key.Unknown
Consumer.0086 ---> Key.Unknown
Consumer.0087 ---> Key.Unknown
Consumer.0088 ---> Key.PC
Consumer.0089 ---> Key.TV
Consumer.008a ---> Key.WWW
Consumer.008b ---> Key.DVD
Consumer.008c ---> Key.Phone
Consumer.008d ---> Key.Program
Consumer.008e ---> Key.?
Consumer.008f ---> Key.?
Consumer.0090 ---> Key.Memo
Consumer.0091 ---> Key.CD
Consumer.0092 ---> Key.VCR
Consumer.0093 ---> Key.Tuner
Consumer.0094 ---> Key.Exit
Consumer.0095 ---> Key.Help
Consumer.0096 ---> Key.Tape
Consumer.0097 ---> Key.TV2
Consumer.0098 ---> Key.Sat
Consumer.0099 ---> Key.Unknown
Consumer.009a ---> Key.PVR
Consumer.009b ---> Key.Unknown
Consumer.009c ---> Key.ChannelUp
Consumer.009d ---> Key.ChannelDown
Consumer.009e ---> Key.Unknown
Consumer.009f ---> Key.Unknown
Consumer.00a0 ---> Key.VCR2
Consumer.00a1 ---> Key.Unknown
Consumer.00a2 ---> Key.Unknown
... Key.Unknown lines left out
Consumer.00ae ---> Key.Unknown
Consumer.00af ---> Key.Unknown
Consumer.00b0 ---> Key.Play
Consumer.00b1 ---> Key.Pause
Consumer.00b2 ---> Key.Record
Consumer.00b3 ---> Key.FastForward
Consumer.00b4 ---> Key.Rewind
Consumer.00b5 ---> Key.NextSong
Consumer.00b6 ---> Key.PreviousSong
Consumer.00b7 ---> Key.StopCD
Consumer.00b8 ---> Key.EjectCD
Consumer.00b9 ---> Key.Shuffle
Consumer.00ba ---> Key.Unknown
Consumer.00bb ---> Key.Unknown
Consumer.00bc ---> Key.?
Consumer.00bd ---> Key.Unknown
Consumer.00be ---> Key.Unknown
Consumer.00bf ---> Key.Slow
Consumer.00c0 ---> Key.Unknown
Consumer.00c1 ---> Key.Unknown
... Key.Unknown lines left out
Consumer.00cb ---> Key.Unknown
Consumer.00cc ---> Key.Unknown
Consumer.00cd ---> Key.PlayPause
Consumer.00ce ---> Key.Unknown
Consumer.00cf ---> Key.VoiceCommand
Consumer.00d0 ---> Key.Unknown
Consumer.00d1 ---> Key.Unknown
... Key.Unknown lines left out
Consumer.00de ---> Key.Unknown
Consumer.00df ---> Key.Unknown
Consumer.00e0 ---> Absolute.Volume
Consumer.00e1 ---> Key.Unknown
Consumer.00e2 ---> Key.Mute
Consumer.00e3 ---> Key.Unknown
Consumer.00e4 ---> Key.Unknown
Consumer.00e5 ---> Key.BassBoost
Consumer.00e6 ---> Key.Unknown
Consumer.00e7 ---> Key.Unknown
Consumer.00e8 ---> Key.Unknown
Consumer.00e9 ---> Key.VolumeUp
Consumer.00ea ---> Key.VolumeDown
Consumer.00eb ---> Key.Unknown
Consumer.00ec ---> Key.Unknown
... Key.Unknown lines left out
Consumer.00f3 ---> Key.Unknown
Consumer.00f4 ---> Key.Unknown
Consumer.00f5 ---> Key.Slow
Consumer.00f6 ---> Key.Unknown
Consumer.00f7 ---> Key.Unknown
... Key.Unknown lines left out
Consumer.017f ---> Key.Unknown
Consumer.0180 ---> Key.Unknown
Consumer.0181 ---> Key.ButtonConfig
Consumer.0182 ---> Key.Bookmarks
Consumer.0183 ---> Key.Config
Consumer.0184 ---> Key.?
Consumer.0185 ---> Key.?
Consumer.0186 ---> Key.?
Consumer.0187 ---> Key.?
Consumer.0188 ---> Key.?
Consumer.0189 ---> Key.?
Consumer.018a ---> Key.Mail
Consumer.018b ---> Key.?
Consumer.018c ---> Key.?
Consumer.018d ---> Key.?
Consumer.018e ---> Key.Calendar
Consumer.018f ---> Key.TaskManager
Consumer.0190 ---> Key.Journal
Consumer.0191 ---> Key.Finance
Consumer.0192 ---> Key.Calc
Consumer.0193 ---> Key.Player
Consumer.0194 ---> Key.File
Consumer.0195 ---> Key.Unknown
Consumer.0196 ---> Key.WWW
Consumer.0197 ---> Key.Unknown
Consumer.0198 ---> Key.Unknown
Consumer.0199 ---> Key.Chat
Consumer.019a ---> Key.Unknown
Consumer.019b ---> Key.Unknown
Consumer.019c ---> Key.Logoff
Consumer.019d ---> Key.Unknown
Consumer.019e ---> Key.Coffee
Consumer.019f ---> Key.ControlPanel
Consumer.01a0 ---> Key.Unknown
Consumer.01a1 ---> Key.Unknown
Consumer.01a2 ---> Key.AppSelect
Consumer.01a3 ---> Key.Next
Consumer.01a4 ---> Key.Previous
Consumer.01a5 ---> Key.Unknown
Consumer.01a6 ---> Key.Help
Consumer.01a7 ---> Key.Documents
Consumer.01a8 ---> Key.Unknown
Consumer.01a9 ---> Key.Unknown
Consumer.01aa ---> Key.Unknown
Consumer.01ab ---> Key.SpellCheck
Consumer.01ac ---> Key.Unknown
Consumer.01ad ---> Key.Unknown
Consumer.01ae ---> Key.Keyboard
Consumer.01af ---> Key.Unknown
Consumer.01b0 ---> Key.Unknown
Consumer.01b1 ---> Key.ScreenSaver
Consumer.01b2 ---> Key.Unknown
Consumer.01b3 ---> Key.Unknown
Consumer.01b4 ---> Key.File
Consumer.01b5 ---> Key.Unknown
Consumer.01b6 ---> Key.?
Consumer.01b7 ---> Key.Audio
Consumer.01b8 ---> Key.Video
Consumer.01b9 ---> Key.Unknown
Consumer.01ba ---> Key.Unknown
Consumer.01bb ---> Key.Unknown
Consumer.01bc ---> Key.?
Consumer.01bd ---> Key.Info
Consumer.01be ---> Key.Unknown
Consumer.01bf ---> Key.Unknown
... Key.Unknown lines left out
Consumer.01ff ---> Key.Unknown
Consumer.0200 ---> Key.Unknown
Consumer.0201 ---> Key.New
Consumer.0202 ---> Key.Open
Consumer.0203 ---> Key.Close
Consumer.0204 ---> Key.Exit
Consumer.0205 ---> Key.Unknown
Consumer.0206 ---> Key.Unknown
Consumer.0207 ---> Key.Save
Consumer.0208 ---> Key.Print
Consumer.0209 ---> Key.Props
Consumer.020a ---> Key.Unknown
Consumer.020b ---> Key.Unknown
... Key.Unknown lines left out
Consumer.0218 ---> Key.Unknown
Consumer.0219 ---> Key.Unknown
Consumer.021a ---> Key.Undo
Consumer.021b ---> Key.Copy
Consumer.021c ---> Key.Cut
Consumer.021d ---> Key.Paste
Consumer.021e ---> Key.Unknown
Consumer.021f ---> Key.Find
Consumer.0220 ---> Key.Unknown
Consumer.0221 ---> Key.Search
Consumer.0222 ---> Key.Goto
Consumer.0223 ---> Key.HomePage
Consumer.0224 ---> Key.Back
Consumer.0225 ---> Key.Forward
Consumer.0226 ---> Key.Stop
Consumer.0227 ---> Key.Refresh
Consumer.0228 ---> Key.Unknown
Consumer.0229 ---> Key.Unknown
Consumer.022a ---> Key.Bookmarks
Consumer.022b ---> Key.Unknown
Consumer.022c ---> Key.Unknown
Consumer.022d ---> Key.?
Consumer.022e ---> Key.?
Consumer.022f ---> Key.?
Consumer.0230 ---> Key.Unknown
Consumer.0231 ---> Key.Unknown
Consumer.0232 ---> Key.Unknown
Consumer.0233 ---> Key.ScrollUp
Consumer.0234 ---> Key.ScrollDown
Consumer.0235 ---> Key.Unknown
Consumer.0236 ---> Key.Unknown
Consumer.0237 ---> Key.Unknown
Consumer.HorizontalWheel ---> Relative.HWheel
Consumer.0239 ---> Key.Unknown
Consumer.023a ---> Key.Unknown
Consumer.023b ---> Key.Unknown
Consumer.023c ---> Key.Unknown
GenericDesktop.0168 ---> Absolute.Misc
GenericDesktop.SystemPowerDown ---> Key.Power
GenericDesktop.SystemSleep ---> Key.Sleep
GenericDesktop.SystemWakeUp ---> Key.WakeUp
GenericDesktop.0168 ---> Sync.Report

HID Descriptor of the old keyboard, interface 0003:17EF:6022.0087 (only one keyboard interface):

05 01 09 06 a1 01 05 07 19 e0 29 e7 15 00 25 01 75 01 95 08 81 02 95 01 75 08 81 01 15 00 26 a4 00 19 00 2a a4 00 05 07 75 08 95 06 81 00 c0 

 INPUT[INPUT]
 Field(0)
 Application(GenericDesktop.Keyboard)
 Usage(8)
 Keyboard.00e0
 Keyboard.00e1
 Keyboard.00e2
 Keyboard.00e3
 Keyboard.00e4
 Keyboard.00e5
 Keyboard.00e6
 Keyboard.00e7
 Logical Minimum(0)
 Logical Maximum(1)
 Report Size(1)
 Report Count(8)
 Report Offset(0)
 Flags( Variable Absolute )
 Field(1)
 Application(GenericDesktop.Keyboard)
 Usage(165)
 Keyboard.0000
 Keyboard.0001
 Keyboard.0002
 Keyboard.0003
 Keyboard.0004
 ... Keyboard sequence left out
 Keyboard.009f
 Keyboard.00a0
 Keyboard.00a1
 Keyboard.00a2
 Keyboard.00a3
 Keyboard.00a4
 Logical Minimum(0)
 Logical Maximum(164)
 Report Size(8)
 Report Count(6)
 Report Offset(16)
 Flags( Array Absolute )

Keyboard.00e0 ---> Key.LeftControl
Keyboard.00e1 ---> Key.LeftShift
Keyboard.00e2 ---> Key.LeftAlt
Keyboard.00e3 ---> Key.LeftMeta
Keyboard.00e4 ---> Key.RightCtrl
Keyboard.00e5 ---> Key.RightShift
Keyboard.00e6 ---> Key.RightAlt
Keyboard.00e7 ---> Key.RightMeta
Keyboard.0000 ---> Sync.Report
Keyboard.0001 ---> Sync.Report
Keyboard.0002 ---> Sync.Report
Keyboard.0003 ---> Sync.Report
Keyboard.0004 ---> Key.A
Keyboard.0005 ---> Key.B
Keyboard.0006 ---> Key.C
Keyboard.0007 ---> Key.D
Keyboard.0008 ---> Key.E
Keyboard.0009 ---> Key.F
Keyboard.000a ---> Key.G
Keyboard.000b ---> Key.H
Keyboard.000c ---> Key.I
Keyboard.000d ---> Key.J
Keyboard.000e ---> Key.K
Keyboard.000f ---> Key.L
Keyboard.0010 ---> Key.M
Keyboard.0011 ---> Key.N
Keyboard.0012 ---> Key.O
Keyboard.0013 ---> Key.P
Keyboard.0014 ---> Key.Q
Keyboard.0015 ---> Key.R
Keyboard.0016 ---> Key.S
Keyboard.0017 ---> Key.T
Keyboard.0018 ---> Key.U
Keyboard.0019 ---> Key.V
Keyboard.001a ---> Key.W
Keyboard.001b ---> Key.X
Keyboard.001c ---> Key.Y
Keyboard.001d ---> Key.Z
Keyboard.001e ---> Key.1
Keyboard.001f ---> Key.2
Keyboard.0020 ---> Key.3
Keyboard.0021 ---> Key.4
Keyboard.0022 ---> Key.5
Keyboard.0023 ---> Key.6
Keyboard.0024 ---> Key.7
Keyboard.0025 ---> Key.8
Keyboard.0026 ---> Key.9
Keyboard.0027 ---> Key.0
Keyboard.0028 ---> Key.Enter
Keyboard.0029 ---> Key.Esc
Keyboard.002a ---> Key.Backspace
Keyboard.002b ---> Key.Tab
Keyboard.002c ---> Key.Space
Keyboard.002d ---> Key.Minus
Keyboard.002e ---> Key.Equal
Keyboard.002f ---> Key.LeftBrace
Keyboard.0030 ---> Key.RightBrace
Keyboard.0031 ---> Key.BackSlash
Keyboard.0032 ---> Key.BackSlash
Keyboard.0033 ---> Key.Semicolon
Keyboard.0034 ---> Key.Apostrophe
Keyboard.0035 ---> Key.Grave
Keyboard.0036 ---> Key.Comma
Keyboard.0037 ---> Key.Dot
Keyboard.0038 ---> Key.Slash
Keyboard.0039 ---> Key.CapsLock
Keyboard.003a ---> Key.F1
Keyboard.003b ---> Key.F2
Keyboard.003c ---> Key.F3
Keyboard.003d ---> Key.F4
Keyboard.003e ---> Key.F5
Keyboard.003f ---> Key.F6
Keyboard.0040 ---> Key.F7
Keyboard.0041 ---> Key.F8
Keyboard.0042 ---> Key.F9
Keyboard.0043 ---> Key.F10
Keyboard.0044 ---> Key.F11
Keyboard.0045 ---> Key.F12
Keyboard.0046 ---> Key.SysRq
Keyboard.0047 ---> Key.ScrollLock
Keyboard.0048 ---> Key.Pause
Keyboard.0049 ---> Key.Insert
Keyboard.004a ---> Key.Home
Keyboard.004b ---> Key.PageUp
Keyboard.004c ---> Key.Delete
Keyboard.004d ---> Key.End
Keyboard.004e ---> Key.PageDown
Keyboard.004f ---> Key.Right
Keyboard.0050 ---> Key.Left
Keyboard.0051 ---> Key.Down
Keyboard.0052 ---> Key.Up
Keyboard.0053 ---> Key.NumLock
Keyboard.0054 ---> Key.KPSlash
Keyboard.0055 ---> Key.KPAsterisk
Keyboard.0056 ---> Key.KPMinus
Keyboard.0057 ---> Key.KPPlus
Keyboard.0058 ---> Key.KPEnter
Keyboard.0059 ---> Key.KP1
Keyboard.005a ---> Key.KP2
Keyboard.005b ---> Key.KP3
Keyboard.005c ---> Key.KP4
Keyboard.005d ---> Key.KP5
Keyboard.005e ---> Key.KP6
Keyboard.005f ---> Key.KP7
Keyboard.0060 ---> Key.KP8
Keyboard.0061 ---> Key.KP9
Keyboard.0062 ---> Key.KP0
Keyboard.0063 ---> Key.KPDot
Keyboard.0064 ---> Key.102nd
Keyboard.0065 ---> Key.Compose
Keyboard.0066 ---> Key.Power
Keyboard.0067 ---> Key.KPEqual
Keyboard.0068 ---> Key.F13
Keyboard.0069 ---> Key.F14
Keyboard.006a ---> Key.F15
Keyboard.006b ---> Key.F16
Keyboard.006c ---> Key.F17
Keyboard.006d ---> Key.F18
Keyboard.006e ---> Key.F19
Keyboard.006f ---> Key.F20
Keyboard.0070 ---> Key.F21
Keyboard.0071 ---> Key.F22
Keyboard.0072 ---> Key.F23
Keyboard.0073 ---> Key.F24
Keyboard.0074 ---> Key.Open
Keyboard.0075 ---> Key.Help
Keyboard.0076 ---> Key.Props
Keyboard.0077 ---> Key.Front
Keyboard.0078 ---> Key.Stop
Keyboard.0079 ---> Key.Again
Keyboard.007a ---> Key.Undo
Keyboard.007b ---> Key.Cut
Keyboard.007c ---> Key.Copy
Keyboard.007d ---> Key.Paste
Keyboard.007e ---> Key.Find
Keyboard.007f ---> Key.Mute
Keyboard.0080 ---> Key.VolumeUp
Keyboard.0081 ---> Key.VolumeDown
Keyboard.0082 ---> Key.Unknown
Keyboard.0083 ---> Key.Unknown
Keyboard.0084 ---> Key.Unknown
Keyboard.0085 ---> Key.KPComma
Keyboard.0086 ---> Key.Unknown
Keyboard.0087 ---> Key.RO
Keyboard.0088 ---> Key.Katakana/Hiragana
Keyboard.0089 ---> Key.Yen
Keyboard.008a ---> Key.Henkan
Keyboard.008b ---> Key.Muhenkan
Keyboard.008c ---> Key.KPJpComma
Keyboard.008d ---> Key.Unknown
Keyboard.008e ---> Key.Unknown
Keyboard.008f ---> Key.Unknown
Keyboard.0090 ---> Key.Hangeul
Keyboard.0091 ---> Key.Hanja
Keyboard.0092 ---> Key.Katakana
Keyboard.0093 ---> Key.HIRAGANA
Keyboard.0094 ---> Key.Zenkaku/Hankaku
Keyboard.0095 ---> Key.Unknown
Keyboard.0096 ---> Key.Unknown
 ... Key.Unknown lines left out
Keyboard.009a ---> Key.Unknown
Keyboard.009b ---> Key.Unknown
Keyboard.009c ---> Key.Delete
Keyboard.009d ---> Key.Unknown
Keyboard.009e ---> Key.Unknown
 ... Key.Unknown lines left out
Keyboard.00a3 ---> Key.Unknown
Keyboard.00a4 ---> Key.Unknown

(Issue experienced on Lenovo Professional Wireless Keyboard, an ASUS keyboard... both wireless keyboards manufactured by Primax.)

(Issue not experienced on Windows and GRUB.)

(Yves Trudeau has already played with it and implemented a driver which ignores the extra byte, but I would rather use something from vanilla kernel and something less hacky.)

vianplvianpl 261 · Accepted Answer · 2019-04-09 10:01:45Z

A proper fix was merged into the Linux kernel: https://lkml.org/lkml/2019/3/27/350

It'll be available whenever version 5.2 comes out, and probably back-ported on some distributions.

dirktdirkt 17.4k31438 · Accepted Answer · 2017-07-12 05:06:19Z

Here is a translation of the raw HID descriptor of 0003:17EF:609B.0089 (the new keyboard) using hidrd:

05 01 Usage Page (Desktop), ; Generic desktop controls (01h)
09 06 Usage (Keyboard), ; Keyboard (06h, application collection)
a1 01 Collection (Application),
05 07 Usage Page (Keyboard), ; Keyboard/keypad (07h)
19 e0 Usage Minimum (KB Leftcontrol), ; Keyboard left control (E0h, dynamic value)
29 e7 Usage Maximum (KB Right GUI), ; Keyboard right GUI (E7h, dynamic value)
15 00 Logical Minimum (0),
25 01 Logical Maximum (1),
75 01 Report Size (1),
95 08 Report Count (8),
81 02 Input (Variable),

75 08 Report Size (8),
95 01 Report Count (1),
81 01 Input (Constant),

05 08 Usage Page (LED), ; LEDs (08h)
19 01 Usage Minimum (01h),
29 03 Usage Maximum (03h),
75 01 Report Size (1),
95 03 Report Count (3),
91 02 Output (Variable),
95 01 Report Count (1),
75 05 Report Size (5),
91 01 Output (Constant),

15 00 Logical Minimum (0),
26 ff 00 Logical Maximum (255),
19 00 Usage Minimum (00h),
2a ff 00 Usage Maximum (FFh),
05 07 Usage Page (Keyboard), ; Keyboard/keypad (07h)
75 08 Report Size (8),
95 06 Report Count (6),
81 00 Input,

05 01 Usage Page (Desktop), ; Generic desktop controls (01h)
0a 68 01 Usage (0168h),
15 80 Logical Minimum (-128),
25 7f Logical Maximum (127),
95 01 Report Count (1),
75 08 Report Size (8),
81 02 Input (Variable),
c0 End Collection

It contains both Input fields (reports from the keyboard) and Output fields (control messages sent to the keyboard), and they are jumbled together, which is nothing unusual. The input fields are also pretty standard: The first byte has bits for modifier keys (left and right shift/ctrl/alt/meta), followed by a constant zero byte, followed by 6 bytes for up to 6 simultanously pressed keys. As you can see from the report examples, this is also exactly what the keyboard sends.

The last extra byte has a range of -128 to 127 (so 71 is -15), and is described as "Generic Desktop" with a usage index of 0x168. This index is not assigned in the publicly available HID Usage Table (HUT) version 1.12, so I don't know what it means. It must be some kind of analog range (keyboard tilt? pressure? some other sensor?). It's also not particularly important what it is, it would be just get ignored by the HID translation layer.

The output message is also standard: One byte, of which 3 bits control the keyboard LEDs (num lock, caps lock, scroll lock), and 5 bits are unused.

However, the switch to Usage Page (Keyboard) in the next input field from Usage Page (LED) in the output field occurs in the middle of the block, and apparently that confuses the kernel HID descriptor parser, so that it interprets this input field also as "LEDs", which makes no sense at all, and prevents it from translating the keys as it should.

That's a bug: Either in the kernel HID descriptor parser, or in the HID descriptor. In the first case, it should be fixed, in the last case, the descriptor should get a quirk in the kernel so it can be fixed. In any way, report it as a bug to the kernel maintainers.

As soon as it is fixed, the kernel should recognize keyboard events normally. There's no need for an extra driver (though it doesn't hurt to use one as a workaround until the bug is fixed).

The kernel HID parser is in drivers/hid/hid-core.c, in case you want to have a got at fixing it yourself.

MacNBMacNB 111 · Accepted Answer · 2017-07-15 15:37:44Z

Just to add to @jan-molnar's efforts to resolve the HID parsing, My key board has very similar rdesc as it too is driven by a Primax USB chip (PiD 4e63):

root@Ub-RL85:~# cat /sys/kernel/debug/hid/*2/rdesc
05 01 09 06 a1 01 05 07 19 e0 29 e7 15 00 25 01 75 01 95 08 81 02 75 08 95 01 81 01 05 08 19 01 29 03 75 01 95 03 91 02 95 01 75 05 91 01 15 00 26 ff 00 19 00 2a ff 00 05 07 75 08 95 06 81 00 c0 

 INPUT[INPUT]
 Field(0)
 Application(GenericDesktop.Keyboard)
 Usage(8)
 Keyboard.00e0
 Keyboard.00e1
 Keyboard.00e2
 Keyboard.00e3
 Keyboard.00e4
 Keyboard.00e5
 Keyboard.00e6
 Keyboard.00e7
 Logical Minimum(0)
 Logical Maximum(1)
 Report Size(1)
 Report Count(8)
 Report Offset(0)
 Flags( Variable Absolute )
 Field(1)
 Application(GenericDesktop.Keyboard)
 Usage(256)
 LED.0000
 LED.NumLock
 LED.CapsLock
 LED.ScrollLock
 LED.Compose
 LED.Kana
 LED.0006
 LED.0007
 LED.0008
 LED.0009
 LED.000a
 LED.000b
 LED.000c
 LED.000d
 LED.000e
 LED.000f
 LED.0010
 LED.0011
 LED.0012
 LED.0013
 LED.0014
 LED.0015
 LED.0016
 LED.0017
 LED.0018
 LED.0019
 LED.001a
 LED.001b
 LED.001c
 LED.001d
 LED.001e
 LED.001f
 LED.0020
 LED.0021
 LED.0022
 LED.0023
 LED.0024
 LED.0025
 LED.0026
 LED.0027
 LED.0028
 LED.0029
 LED.002a
 LED.002b
 LED.002c
 LED.002d
 LED.002e
 LED.002f
 LED.0030
 LED.0031
 LED.0032
 LED.0033
 LED.0034
 LED.0035
 LED.0036
 LED.0037
 LED.0038
 LED.0039
 LED.003a
 LED.003b
 LED.003c
 LED.003d
 LED.003e
 LED.003f
 LED.0040
 LED.0041
 LED.0042
 LED.0043
 LED.0044
 LED.0045
 LED.0046
 LED.0047
 LED.0048
 LED.0049
 LED.004a
 LED.GenericIndicator
 LED.004c
 LED.004d
 LED.004e
 LED.004f
 LED.0050
 LED.0051
 LED.0052
 LED.0053
 LED.0054
 LED.0055
 LED.0056
 LED.0057
 LED.0058
 LED.0059
 LED.005a
 LED.005b
 LED.005c
 LED.005d
 LED.005e
 LED.005f
 LED.0060
 LED.0061
 LED.0062
 LED.0063
 LED.0064
 LED.0065
 LED.0066
 LED.0067
 LED.0068
 LED.0069
 LED.006a
 LED.006b
 LED.006c
 LED.006d
 LED.006e
 LED.006f
 LED.0070
 LED.0071
 LED.0072
 LED.0073
 LED.0074
 LED.0075
 LED.0076
 LED.0077
 LED.0078
 LED.0079
 LED.007a
 LED.007b
 LED.007c
 LED.007d
 LED.007e
 LED.007f
 LED.0080
 LED.0081
 LED.0082
 LED.0083
 LED.0084
 LED.0085
 LED.0086
 LED.0087
 LED.0088
 LED.0089
 LED.008a
 LED.008b
 LED.008c
 LED.008d
 LED.008e
 LED.008f
 LED.0090
 LED.0091
 LED.0092
 LED.0093
 LED.0094
 LED.0095
 LED.0096
 LED.0097
 LED.0098
 LED.0099
 LED.009a
 LED.009b
 LED.009c
 LED.009d
 LED.009e
 LED.009f
 LED.00a0
 LED.00a1
 LED.00a2
 LED.00a3
 LED.00a4
 LED.00a5
 LED.00a6
 LED.00a7
 LED.00a8
 LED.00a9
 LED.00aa
 LED.00ab
 LED.00ac
 LED.00ad
 LED.00ae
 LED.00af
 LED.00b0
 LED.00b1
 LED.00b2
 LED.00b3
 LED.00b4
 LED.00b5
 LED.00b6
 LED.00b7
 LED.00b8
 LED.00b9
 LED.00ba
 LED.00bb
 LED.00bc
 LED.00bd
 LED.00be
 LED.00bf
 LED.00c0
 LED.00c1
 LED.00c2
 LED.00c3
 LED.00c4
 LED.00c5
 LED.00c6
 LED.00c7
 LED.00c8
 LED.00c9
 LED.00ca
 LED.00cb
 LED.00cc
 LED.00cd
 LED.00ce
 LED.00cf
 LED.00d0
 LED.00d1
 LED.00d2
 LED.00d3
 LED.00d4
 LED.00d5
 LED.00d6
 LED.00d7
 LED.00d8
 LED.00d9
 LED.00da
 LED.00db
 LED.00dc
 LED.00dd
 LED.00de
 LED.00df
 LED.00e0
 LED.00e1
 LED.00e2
 LED.00e3
 LED.00e4
 LED.00e5
 LED.00e6
 LED.00e7
 LED.00e8
 LED.00e9
 LED.00ea
 LED.00eb
 LED.00ec
 LED.00ed
 LED.00ee
 LED.00ef
 LED.00f0
 LED.00f1
 LED.00f2
 LED.00f3
 LED.00f4
 LED.00f5
 LED.00f6
 LED.00f7
 LED.00f8
 LED.00f9
 LED.00fa
 LED.00fb
 LED.00fc
 LED.00fd
 LED.00fe
 LED.00ff
 Logical Minimum(0)
 Logical Maximum(255)
 Report Size(8)
 Report Count(6)
 Report Offset(16)
 Flags( Array Absolute )
 OUTPUT[OUTPUT]
 Field(0)
 Application(GenericDesktop.Keyboard)
 Usage(3)
 LED.NumLock
 LED.CapsLock
 LED.ScrollLock
 Logical Minimum(0)
 Logical Maximum(1)
 Report Size(1)
 Report Count(3)
 Report Offset(0)
 Flags( Variable Absolute )

Keyboard.00e0 ---> Key.LeftControl
Keyboard.00e1 ---> Key.LeftShift
Keyboard.00e2 ---> Key.LeftAlt
Keyboard.00e3 ---> Key.LeftMeta
Keyboard.00e4 ---> Key.RightCtrl
Keyboard.00e5 ---> Key.RightShift
Keyboard.00e6 ---> Key.RightAlt
Keyboard.00e7 ---> Key.RightMeta
LED.0000 ---> Sync.Report
LED.NumLock ---> LED.NumLock
LED.CapsLock ---> LED.CapsLock
LED.ScrollLock ---> LED.ScrollLock
LED.Compose ---> LED.Compose
LED.Kana ---> LED.Kana
LED.0006 ---> Sync.Report
LED.0007 ---> Sync.Report
LED.0008 ---> Sync.Report
LED.0009 ---> LED.Mute
LED.000a ---> Sync.Report
LED.000b ---> Sync.Report
LED.000c ---> Sync.Report
LED.000d ---> Sync.Report
LED.000e ---> Sync.Report
LED.000f ---> Sync.Report
LED.0010 ---> Sync.Report
LED.0011 ---> Sync.Report
LED.0012 ---> Sync.Report
LED.0013 ---> Sync.Report
LED.0014 ---> Sync.Report
LED.0015 ---> Sync.Report
LED.0016 ---> Sync.Report
LED.0017 ---> Sync.Report
LED.0018 ---> Sync.Report
LED.0019 ---> LED.?
LED.001a ---> Sync.Report
LED.001b ---> Sync.Report
LED.001c ---> Sync.Report
LED.001d ---> Sync.Report
LED.001e ---> Sync.Report
LED.001f ---> Sync.Report
LED.0020 ---> Sync.Report
LED.0021 ---> Sync.Report
LED.0022 ---> Sync.Report
LED.0023 ---> Sync.Report
LED.0024 ---> Sync.Report
LED.0025 ---> Sync.Report
LED.0026 ---> Sync.Report
LED.0027 ---> LED.Sleep
LED.0028 ---> Sync.Report
LED.0029 ---> Sync.Report
LED.002a ---> Sync.Report
LED.002b ---> Sync.Report
LED.002c ---> Sync.Report
LED.002d ---> Sync.Report
LED.002e ---> Sync.Report
LED.002f ---> Sync.Report
LED.0030 ---> Sync.Report
LED.0031 ---> Sync.Report
LED.0032 ---> Sync.Report
LED.0033 ---> Sync.Report
LED.0034 ---> Sync.Report
LED.0035 ---> Sync.Report
LED.0036 ---> Sync.Report
LED.0037 ---> Sync.Report
LED.0038 ---> Sync.Report
LED.0039 ---> Sync.Report
LED.003a ---> Sync.Report
LED.003b ---> Sync.Report
LED.003c ---> Sync.Report
LED.003d ---> Sync.Report
LED.003e ---> Sync.Report
LED.003f ---> Sync.Report
LED.0040 ---> Sync.Report
LED.0041 ---> Sync.Report
LED.0042 ---> Sync.Report
LED.0043 ---> Sync.Report
LED.0044 ---> Sync.Report
LED.0045 ---> Sync.Report
LED.0046 ---> Sync.Report
LED.0047 ---> Sync.Report
LED.0048 ---> Sync.Report
LED.0049 ---> Sync.Report
LED.004a ---> Sync.Report
LED.GenericIndicator ---> LED.Misc
LED.004c ---> LED.Suspend
LED.004d ---> LED.?
LED.004e ---> Sync.Report
LED.004f ---> Sync.Report
LED.0050 ---> Sync.Report
LED.0051 ---> Sync.Report
LED.0052 ---> Sync.Report
LED.0053 ---> Sync.Report
LED.0054 ---> Sync.Report
LED.0055 ---> Sync.Report
LED.0056 ---> Sync.Report
LED.0057 ---> Sync.Report
LED.0058 ---> Sync.Report
LED.0059 ---> Sync.Report
LED.005a ---> Sync.Report
LED.005b ---> Sync.Report
LED.005c ---> Sync.Report
LED.005d ---> Sync.Report
LED.005e ---> Sync.Report
LED.005f ---> Sync.Report
LED.0060 ---> Sync.Report
LED.0061 ---> Sync.Report
LED.0062 ---> Sync.Report
LED.0063 ---> Sync.Report
LED.0064 ---> Sync.Report
LED.0065 ---> Sync.Report
LED.0066 ---> Sync.Report
LED.0067 ---> Sync.Report
LED.0068 ---> Sync.Report
LED.0069 ---> Sync.Report
LED.006a ---> Sync.Report
LED.006b ---> Sync.Report
LED.006c ---> Sync.Report
LED.006d ---> Sync.Report
LED.006e ---> Sync.Report
LED.006f ---> Sync.Report
LED.0070 ---> Sync.Report
LED.0071 ---> Sync.Report
LED.0072 ---> Sync.Report
LED.0073 ---> Sync.Report
LED.0074 ---> Sync.Report
LED.0075 ---> Sync.Report
LED.0076 ---> Sync.Report
LED.0077 ---> Sync.Report
LED.0078 ---> Sync.Report
LED.0079 ---> Sync.Report
LED.007a ---> Sync.Report
LED.007b ---> Sync.Report
LED.007c ---> Sync.Report
LED.007d ---> Sync.Report
LED.007e ---> Sync.Report
LED.007f ---> Sync.Report
LED.0080 ---> Sync.Report
LED.0081 ---> Sync.Report
LED.0082 ---> Sync.Report
LED.0083 ---> Sync.Report
LED.0084 ---> Sync.Report
LED.0085 ---> Sync.Report
LED.0086 ---> Sync.Report
LED.0087 ---> Sync.Report
LED.0088 ---> Sync.Report
LED.0089 ---> Sync.Report
LED.008a ---> Sync.Report
LED.008b ---> Sync.Report
LED.008c ---> Sync.Report
LED.008d ---> Sync.Report
LED.008e ---> Sync.Report
LED.008f ---> Sync.Report
LED.0090 ---> Sync.Report
LED.0091 ---> Sync.Report
LED.0092 ---> Sync.Report
LED.0093 ---> Sync.Report
LED.0094 ---> Sync.Report
LED.0095 ---> Sync.Report
LED.0096 ---> Sync.Report
LED.0097 ---> Sync.Report
LED.0098 ---> Sync.Report
LED.0099 ---> Sync.Report
LED.009a ---> Sync.Report
LED.009b ---> Sync.Report
LED.009c ---> Sync.Report
LED.009d ---> Sync.Report
LED.009e ---> Sync.Report
LED.009f ---> Sync.Report
LED.00a0 ---> Sync.Report
LED.00a1 ---> Sync.Report
LED.00a2 ---> Sync.Report
LED.00a3 ---> Sync.Report
LED.00a4 ---> Sync.Report
LED.00a5 ---> Sync.Report
LED.00a6 ---> Sync.Report
LED.00a7 ---> Sync.Report
LED.00a8 ---> Sync.Report
LED.00a9 ---> Sync.Report
LED.00aa ---> Sync.Report
LED.00ab ---> Sync.Report
LED.00ac ---> Sync.Report
LED.00ad ---> Sync.Report
LED.00ae ---> Sync.Report
LED.00af ---> Sync.Report
LED.00b0 ---> Sync.Report
LED.00b1 ---> Sync.Report
LED.00b2 ---> Sync.Report
LED.00b3 ---> Sync.Report
LED.00b4 ---> Sync.Report
LED.00b5 ---> Sync.Report
LED.00b6 ---> Sync.Report
LED.00b7 ---> Sync.Report
LED.00b8 ---> Sync.Report
LED.00b9 ---> Sync.Report
LED.00ba ---> Sync.Report
LED.00bb ---> Sync.Report
LED.00bc ---> Sync.Report
LED.00bd ---> Sync.Report
LED.00be ---> Sync.Report
LED.00bf ---> Sync.Report
LED.00c0 ---> Sync.Report
LED.00c1 ---> Sync.Report
LED.00c2 ---> Sync.Report
LED.00c3 ---> Sync.Report
LED.00c4 ---> Sync.Report
LED.00c5 ---> Sync.Report
LED.00c6 ---> Sync.Report
LED.00c7 ---> Sync.Report
LED.00c8 ---> Sync.Report
LED.00c9 ---> Sync.Report
LED.00ca ---> Sync.Report
LED.00cb ---> Sync.Report
LED.00cc ---> Sync.Report
LED.00cd ---> Sync.Report
LED.00ce ---> Sync.Report
LED.00cf ---> Sync.Report
LED.00d0 ---> Sync.Report
LED.00d1 ---> Sync.Report
LED.00d2 ---> Sync.Report
LED.00d3 ---> Sync.Report
LED.00d4 ---> Sync.Report
LED.00d5 ---> Sync.Report
LED.00d6 ---> Sync.Report
LED.00d7 ---> Sync.Report
LED.00d8 ---> Sync.Report
LED.00d9 ---> Sync.Report
LED.00da ---> Sync.Report
LED.00db ---> Sync.Report
LED.00dc ---> Sync.Report
LED.00dd ---> Sync.Report
LED.00de ---> Sync.Report
LED.00df ---> Sync.Report
LED.00e0 ---> Sync.Report
LED.00e1 ---> Sync.Report
LED.00e2 ---> Sync.Report
LED.00e3 ---> Sync.Report
LED.00e4 ---> Sync.Report
LED.00e5 ---> Sync.Report
LED.00e6 ---> Sync.Report
LED.00e7 ---> Sync.Report
LED.00e8 ---> Sync.Report
LED.00e9 ---> Sync.Report
LED.00ea ---> Sync.Report
LED.00eb ---> Sync.Report
LED.00ec ---> Sync.Report
LED.00ed ---> Sync.Report
LED.00ee ---> Sync.Report
LED.00ef ---> Sync.Report
LED.00f0 ---> Sync.Report
LED.00f1 ---> Sync.Report
LED.00f2 ---> Sync.Report
LED.00f3 ---> Sync.Report
LED.00f4 ---> Sync.Report
LED.00f5 ---> Sync.Report
LED.00f6 ---> Sync.Report
LED.00f7 ---> Sync.Report
LED.00f8 ---> Sync.Report
LED.00f9 ---> Sync.Report
LED.00fa ---> Sync.Report
LED.00fb ---> Sync.Report
LED.00fc ---> Sync.Report
LED.00fd ---> Sync.Report
LED.00fe ---> Sync.Report
LED.00ff ---> Sync.Report
LED.NumLock ---> LED.?
LED.CapsLock ---> LED.?
LED.ScrollLock ---> LED.?

I asked here

Dont think Yves Trudeau's "driver" is the answer. I'm willing to help.

Looks like the same problem: Kernel parser is confused by HID descriptor. So that's a bug that needs to be fixed ... — Jul 15 '17 at 16:57

user3392204 31 · Accepted Answer · 2017-11-16 14:58:08Z

I have got the Lenovo Professional Wireless Keyboard (4X30H56854). Yves Trudeau's "driver" works* for me after changing the product id from 609b to 609c (ATTRSidProduct=="609c").

*almost, but not the "Windows"/"Super" key.

There is apparently a typo/undocumented feature on lines 257, 365 and 431. Meta is mapped to the "copy to clipboard" key, i.e. KEY_COPY. It should be mapped to KEY_LEFTMETA instead. Change that, recompile, and it works. — Jul 3 '18 at 11:03

vianplvianpl 261 · Accepted Answer · 2019-04-09 10:01:45Z

Due to I have the problem with a wireless Lenovo Essential Keyboard also I were forced to look deeper into the issue. Thanks to dirkt answer I could come up with a solution for me and now also for the Lenovo Professional Wireless Keyboard (now that I got one).

Updated 25.11.2018:

Now we are on 4.18.20 kernel and the patch changed because there are now devices with the same IDs but with correct HID descriptor where the fixup is a make it not work. But to be positive I know now how the HID descriptor should look like and therfore the fix should be more correct now.

I added the primax fix also (untested) which probably will work for the ASUS keyboard also. Sorry for the delay but fixing some AMDGPU issues had kept me more then busy.

diff -Naur current/drivers/hid/hid-ids.h igelworkdir/drivers/hid/hid-ids.h
--- current/drivers/hid/hid-ids.h 2018-11-25 00:15:18.384090521 +0100
+++ igelworkdir/drivers/hid/hid-ids.h 2018-11-25 00:18:26.210612649 +0100
@@ -698,6 +698,8 @@
 #define USB_DEVICE_ID_LENOVO_TPPRODOCK 0x6067
 #define USB_DEVICE_ID_LENOVO_X1_COVER 0x6085
 #define USB_DEVICE_ID_LENOVO_X1_TAB 0x60a3
+#define USB_DEVICE_ID_LENOVO_WIRELESS_ESSENTIAL 0x60a9
+#define USB_DEVICE_ID_LENOVO_WIRELESS_PROFESSIONAL 0x609b

 #define USB_VENDOR_ID_LG 0x1fd2
 #define USB_DEVICE_ID_LG_MULTITOUCH 0x0064
@@ -1191,6 +1193,7 @@
 #define USB_VENDOR_ID_PRIMAX 0x0461
 #define USB_DEVICE_ID_PRIMAX_MOUSE_4D22 0x4d22
 #define USB_DEVICE_ID_PRIMAX_KEYBOARD 0x4e05
+#define USB_DEVICE_ID_PRIMAX_KEYBOARD_NEW 0x4e80
 #define USB_DEVICE_ID_PRIMAX_REZEL 0x4e72


diff -Naur current/drivers/hid/hid-lenovo.c igelworkdir/drivers/hid/hid-lenovo.c
--- current/drivers/hid/hid-lenovo.c 2018-11-25 00:15:18.148092378 +0100
+++ igelworkdir/drivers/hid/hid-lenovo.c 2018-11-25 00:18:51.654412438 +0100
@@ -64,6 +64,43 @@
 0x2a, 0xff, 0xff, /* Usage Maximum (65535) */
 };

+/* gottwald@igel.com function to fix HID descriptor of primax based lenovo keyboards */
+
+static void fix_lenovo_hid_descriptor_primax(__u8 *rdesc)
+
+ __u8 desc[16];
+ int i=0;
+
+ /* There are variants which do not have the issue these must be excluded */
+ if (rdesc[46] == 0x05 && rdesc[47] == 0x07 && rdesc[48] == 0x19 &&
+ rdesc[49] == 0x00 && rdesc[50] == 0x2A && rdesc[51] == 0xFF &&
+ rdesc[52] == 0x00 && rdesc[53] == 0x15 && rdesc[54] == 0x00 &&
+ rdesc[55] == 0x26 && rdesc[56] == 0xFF && rdesc[57] == 0x00 &&
+ rdesc[58] == 0x95 && rdesc[59] == 0x06 && rdesc[60] == 0x75 &&
+ rdesc[61] == 0x08)
+ return;
+
+ desc[0] = rdesc[56];
+ desc[1] = rdesc[57];
+ desc[2] = rdesc[51];
+ desc[3] = rdesc[52];
+ desc[4] = rdesc[53];
+ desc[5] = rdesc[54];
+ desc[6] = rdesc[55];
+ desc[7] = rdesc[46];
+ desc[8] = rdesc[47];
+ desc[9] = rdesc[48];
+ desc[10] = rdesc[49];
+ desc[11] = rdesc[50];
+ desc[12] = rdesc[60];
+ desc[13] = rdesc[61];
+ desc[14] = rdesc[58];
+ desc[15] = rdesc[59];
+ for (i=46;i<=61;i++) 
+ rdesc[i] = desc[i-46];
+ 
+
+
 static __u8 *lenovo_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 unsigned int *rsize)
 
@@ -80,6 +117,23 @@
 rdesc[152] = 0x00;
 
 break;
+ /* gottwald@igel.com Workaround to get Primax based Lenovo wireless keyboards working */
+
+ case USB_DEVICE_ID_LENOVO_WIRELESS_PROFESSIONAL:
+ if (*rsize == 80) 
+ // Not the keyboard if the rdesc[3] is not 0x06
+
+ if (rdesc[3] != 0x06)
+ return rdesc;
+
+ fix_lenovo_hid_descriptor_primax(rdesc);
+ 
+ break;
+ case USB_DEVICE_ID_LENOVO_WIRELESS_ESSENTIAL:
+ if (*rsize == 65) 
+ fix_lenovo_hid_descriptor_primax(rdesc);
+ 
+ break;
 }
 return rdesc;
 }
@@ -913,6 +967,9 @@
 HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) ,
 HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) ,
 HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) ,
+ /* gottwald@igel.com load driver for Lenovo wireless keyboards which needs a workaround */
+ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_WIRELESS_ESSENTIAL) ,
+ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_WIRELESS_PROFESSIONAL) ,
 HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) ,
 HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) ,
 HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) ,
diff -Naur current/drivers/hid/hid-primax.c igelworkdir/drivers/hid/hid-primax.c
--- current/drivers/hid/hid-primax.c 2018-11-25 00:15:18.392090458 +0100
+++ igelworkdir/drivers/hid/hid-primax.c 2018-11-25 00:19:17.970205362 +0100
@@ -22,11 +22,65 @@

 #include "hid-ids.h"

+/* gottwald@igel.com function to fix HID descriptor of primax based keyboards */
+
+static void fix_hid_descriptor_primax(__u8 *rdesc)
+
+ __u8 desc[16];
+ int i=0;
+
+ /* There are variants which do not have the issue these must be excluded */
+ if (rdesc[46] == 0x05 && rdesc[47] == 0x07 && rdesc[48] == 0x19 &&
+ rdesc[49] == 0x00 && rdesc[50] == 0x2A && rdesc[51] == 0xFF &&
+ rdesc[52] == 0x00 && rdesc[53] == 0x15 && rdesc[54] == 0x00 &&
+ rdesc[55] == 0x26 && rdesc[56] == 0xFF && rdesc[57] == 0x00 &&
+ rdesc[58] == 0x95 && rdesc[59] == 0x06 && rdesc[60] == 0x75 &&
+ rdesc[61] == 0x08)
+ return;
+
+ desc[0] = rdesc[56];
+ desc[1] = rdesc[57];
+ desc[2] = rdesc[51];
+ desc[3] = rdesc[52];
+ desc[4] = rdesc[53];
+ desc[5] = rdesc[54];
+ desc[6] = rdesc[55];
+ desc[7] = rdesc[46];
+ desc[8] = rdesc[47];
+ desc[9] = rdesc[48];
+ desc[10] = rdesc[49];
+ desc[11] = rdesc[50];
+ desc[12] = rdesc[60];
+ desc[13] = rdesc[61];
+ desc[14] = rdesc[58];
+ desc[15] = rdesc[59];
+ for (i=46;i<=61;i++) 
+ rdesc[i] = desc[i-46];
+ 
+
+
+static __u8 *primax_report_fixup(struct hid_device *hid, __u8 *rdesc,
+ unsigned int *rsize)
+
+ switch (hid->product) 
+ /* gottwald@igel.com Workaround to get Primax based keyboards working */
+ case USB_DEVICE_ID_PRIMAX_KEYBOARD_NEW:
+ if (*rsize > 61) 
+ fix_hid_descriptor_primax(rdesc);
+ 
+ break;
+ 
+ return rdesc;
+
+
 static int px_raw_event(struct hid_device *hid, struct hid_report *report,
 u8 *data, int size)
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