[coreboot] Using USB keyboard in payloads

[Dave Frodin]

Peter,
Is this what you were wanting?
dave,

Bus 003 Device 002: ID 045e:009d Microsoft Corp. Wireless Optical Desktop 3.0
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x045e Microsoft Corp.
  idProduct          0x009d Wireless Optical Desktop 3.0
  bcdDevice            0.41
  iManufacturer           1 
  iProduct                2 
  iSerial                 0 
  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               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      63
         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     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 No Subclass
      bInterfaceProtocol      0 None
      iInterface              0 
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength     556
         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     0x0008  1x 8 bytes
        bInterval              10


----- Original Message -----
> From: "Peter Stuge" <peter at stuge.se>
> To: coreboot at coreboot.org
> Sent: Monday, November 19, 2012 11:05:23 AM
> Subject: Re: [coreboot] Using USB keyboard in payloads
> 
> Patrick Georgi wrote:
> > This only means that the device provides multiple interfaces.
> 
> Dave, please send lsusb -v output for this keyboard.
> 
> 
> > In USB you have to select one, and the HID driver simply defaults
> > to the first. We didn't find a useful clue what to do in limited
> > environments when encountering such a situation - ie. any standard
> > that proposes that the first interface should provide a "typical
> > keyboard".
> 
> A composite device (multiple interfaces) will have various different
> indicators in the descriptors for which interface is the actual
> keyboard.
> 
> What happens currently if I have two different keyboards connected?
> 
> 
> //Peter
> 
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