I have problem with my keypad which I bought from China, it's a keypad dedicated to osu! However, producer provides drivers only for Windows. Despites the key pressed, it's returns me c letter.
I tried many methods like listening raw input from keyboard, but it always returns me 01 00 06 ... (when key pressed) or 01 00 00 ... (when key not pressed). I cannot obtain which key are clicked atm of listening.
I tried evtest too but when I click it's nothing happened, although evdev returns me that three keys are present:
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x1189 product 0x8890 version 0x110
Input device name: "HID 1189:8890"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 272 (BTN_LEFT)
Event code 273 (BTN_RIGHT)
Event code 274 (BTN_MIDDLE)
Event type 2 (EV_REL)
Event code 0 (REL_X)
Event code 1 (REL_Y)
Event code 8 (REL_WHEEL)
Event code 11 (REL_WHEEL_HI_RES)
Event type 4 (EV_MSC)
Event code 4 (MSC_SCAN)
I tried using hidapi too, but when I trying to check if key pressed (by if (event.type == EV_KEY), it's returns nothing.
Also, I tried to get raw input by WireShark, only it returns me smth different bytes on key pressing (so I know that's keys are recognized as different).
So, what's I can do? I really need program this keypad but most of HID tools disappointed me and always returns me raw input without information which key is pressed. I'm trying to write driver for Linux for it keyboard but I don't know from where I can start.
There is a usbhid-dump output:
001:008:003:DESCRIPTOR 1736873035.175572
05 01 09 02 A1 01 09 01 A1 00 05 09 19 01 29 03
15 00 25 01 75 01 95 03 81 02 75 05 95 01 81 01
05 01 09 30 09 31 09 38 15 81 25 7F 75 08 95 03
81 06 C0 C0
001:008:002:DESCRIPTOR 1736873035.176839
05 01 09 06 A1 01 85 01 05 07 19 E0 29 E7 15 00
25 01 75 01 95 08 81 02 95 01 75 08 81 03 95 08
75 01 05 08 19 01 29 05 91 02 95 09 75 08 15 00
25 FF 05 07 19 00 29 FF 81 00 C0 05 0C 09 01 A1
01 85 02 95 01 75 10 16 00 00 26 FF 02 1A 00 00
2A FF 02 81 00 C0
001:008:000:DESCRIPTOR 1736873035.177888
05 01 09 06 A1 01 85 01 05 07 19 E0 29 E7 15 00
25 01 75 01 95 08 81 02 95 01 75 08 81 01 95 03
75 01 05 08 19 01 29 03 91 02 95 05 75 01 91 01
95 06 75 08 26 FF 00 05 07 19 00 29 91 81 00 C0
I resolved that keypad have four interrupts (0x02 which returns me random bytes, 0x81 which returns me if key pressed or not but without information which key are pressed, 0x82 and 0x83)
Here is output from lsusb:
Bus 001 Device 005: ID 1189:8890 Acer Communications & Multimedia
Negotiated speed: Full Speed (12Mbps)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 [unknown]
bDeviceSubClass 0 [unknown]
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x1189 Acer Communications & Multimedia
idProduct 0x8890
bcdDevice 0.00
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x006d
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 (null)
wDescriptorLength 64
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 [unknown]
bInterfaceProtocol 0
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 (null)
wDescriptorLength 36
Report Descriptor: (length is 36)
Item(Global): Usage Page, data= [ 0x00 0xff ] 65280
(null)
Item(Local ): (null), data= [ 0x01 ] 1
(null)
Item(Main ): (null), data= [ 0x01 ] 1
Application
Item(Global): (null), data= [ 0x03 ] 3
Item(Local ): (null), data= [ 0x02 ] 2
(null)
Item(Global): (null), data= [ 0x00 ] 0
Item(Global): (null), data= [ 0x00 0xff ] 65280
Item(Global): (null), data= [ 0x08 ] 8
Item(Global): (null), data= [ 0x40 ] 64
Item(Main ): (null), data= [ 0x06 ] 6
Data Variable Relative No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): (null), data= [ 0x02 ] 2
(null)
Item(Global): (null), data= [ 0x00 ] 0
Item(Global): (null), data= [ 0x00 0xff ] 65280
Item(Global): (null), data= [ 0x08 ] 8
Item(Global): (null), data= [ 0x40 ] 64
Item(Main ): (null), data= [ 0x06 ] 6
Data Variable Relative No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Main ): (null), data=none
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 [unknown]
bInterfaceProtocol 0
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 (null)
wDescriptorLength 86
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 (null)
wDescriptorLength 52
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
And here is outputs which WireShark give to me for selected keys:
Key 1: 00 01 03 00 00 00 09 21 00 01 00 01 22 56 00 07 05 83 03 04 00 0a 09 04 03 00 01 03 01 02 00 09 21 10 01 00 01 22 34 00 07 05 82 03 04 00 0a 0e 03 6b 00 65 00 79 00 35 00 35 00 32 00 04 03 09 04 0e 03 77 00 63 00 68 00 2e 00 63 00 6e 00 0c 03 43 00 48 00 35 00 35 00 39 00 90 01 32 e0 ff 75 f0 0e a4 24 2d f5 82 e4 34 01 f5 83 e0 64 03 70 5c 90 01 36 e0 70 56 ef 75 f0 0e a4 24 39
Key 2: 90 01 32 f0 22 90 01 37 e0 ff a3 e0 fe c3 9f 40 03 02 1d 1a ed 64 01 60 03 02 1c f8 ee 14 60 32 14 60 41 14 60 50 14 60 5f 24 04 70 75 90 01 35 e0 ff 75 f0 0e a4 24 3e f5 82 e4 34 01 f5 83 e0 90 01 d0 f0 ef 75 f0 0e a4 24 3f f5 82 e4 34 01 80 46 90 01 35 e0 ff 75 f0 0e a4 24 41 f5 82 e4 34 01 80 34 90 01 35 e0 ff 75 f0 0e a4 24 43 f5 82 e4 34 01 80 22 90 01 35 e0 ff 75 f0 0e a4
Key 3: e4 f0 90 01 47 75 f0 0e ed 12 0f ad ec 75 f0 0e a4 25 83 f5 83 e4 f0 0d bd 00 01 0c ed 64 09 4c 60 03 02 1d 29 22 48 01 c4 00 00 00 00 00 00 00 00 41 01 31 00 60 7e 01 3a 01 01 01 00 00 06 00 00 00 00 00 00 00 00 02 01 01 00 00 06 00 00 00 00 00 00 00 00 03 01 01 00 00 06 00 00 00 00 00 00 00 00 04 01 01 00 00 06 00 00 00 00 00 00 00 00 05 01 01 00 00 06 00 00 00 00 00 00 00 00
