Re: [SeaBIOS] K-TEK-M275TP-FN-BL-ML USB keyboard support

[Аладышев Константин]

Ok, I'll provide SeaBIOS log later, but for now look at "lsusb -v" log from Linux:

""""
Bus 001 Device 004: ID 7777:7778  
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x7777 
  idProduct          0x7778 
  bcdDevice            0.01
  iManufacturer           1 KEY-IKB-MKB
  iProduct                2 WWW.KEY-TEK.CN
  iSerial                 3 17177
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           59
    bNumInterfaces          2
    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               1.10
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      73
         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     0x0020  1x 32 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      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 Report
          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     0x0020  1x 32 bytes
        bInterval              10
Device Status:     0x0000
  (Bus Powered)
""""

As you can see both mouse and keyboard in this device support "Boot Interface Subclass", but "wMaxPacketSize=0x0020  1x 32 bytes" in their endpoints. So this already wouldn't work, cause in file "src\hw\usb-hid.c" in function " usb_kbd_setup" check "(epdesc->wMaxPacketSize != 8)" wouldn't pass.

-----Original Message-----
From: Kevin O'Connor [mailto:[e-mail]] 
Sent: Monday, October 30, 2017 10:42 PM
To: Аладышев Константин
Cc: [e-mail]
Subject: Re: K-TEK-M275TP-FN-BL-ML USB keyboard support

On Mon, Oct 30, 2017 at 04:00:17PM +0300, Аладышев Константин wrote:
> Hello! I'm having problems with K-TEK-M275TP-FN-BL-ML keyboard 
> (http://www.key-tek.cn/Productview.asp?id=777). It is USB device with 
> keyboard and touchpad combined. It works in OS correctly, but doesn't 
> work in SeaBIOS.

If you're experiencing a problem with SeaBIOS, please send the full debug log to the mailing list as described at:
https://www.seabios.org/Debugging
> I've tried to debug this issue and found that "usb_kbd_setup" function 
> fails on "(epdesc->wMaxPacketSize != 8)" check, cause 
> "epdesc->wMaxPacketSize" is actually 32. I've modified this "if" 
> statement to pass 32 value also and now function completes 
> successfully. But it didn't help to solve my issue. There are no 
> interrupts from keyboard, "ehci_poll_intr" always returns -1 on
> check:
>
> if (token & QTD_STS_ACTIVE) {
>         // No intrs found.
>         return -1;
> }
>
> I don't know what to do now. What should  I check next?
>
> Does SeaBIOS support USB keyboard+touchpad devices at all?

SeaBIOS should support any USB keyboard (or mouse) that supports the "USB HID boot protocol".

-Kevin