Hi,
I've a problem with my Microsoft Digital Media Keyboard 3000.
One part of the keyboard is seen as a joystick by the hid layer of the
kernel (creating a js0 node with udev…)
The lsusb output is in the attachements.
as you can see inside it, the keyboard declares two interfaces:
bNumInterfaces 2
One with :
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
which seems ok
and one with:
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
The device is cut in two by event system :
pci-0000:00:1d.7-usb-0:1.2:1.0-event-kbd
pci-0000:00:1d.7-usb-0:1.2:1.1-event-kbd
but this last one is also provided to :
pci-0000:00:1d.7-usb-0:1.2:1.1-kbd -> ../js0
The signals sent on it are nothing like a joystick (some garbage
sometimes, but nothing that seems coherent).
Special keys seems to be sent only to the second input event device. But
I managed to get them working by remapping them :
/usr/lib/udev/keymap input/event11 0xc022d back 0xc022e forward 0xc01b6
camera 0xc01a2 f19
the only one which is not working is the "Aero" key, giving a scancode
of 0x1A2, I can see it in the /sys/kernel/debug/hid/…/event but it
doesn't seems to be declared as a valid scancode judging by what I see
in include/linux/input.h of a 3.4 kernel.
Do you think it can be possible to avoid the kernel seeing this as a
joystick (joydev module) and to add this 0x1A2 scan code ?
If you need any further information, I may provide them to you.
Thanks for your work on the kernel.
Bus 002 Device 009: ID 045e:0730 Microsoft Corp. Digital Media Keyboard 3000
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 0x0730 Digital Media Keyboard 3000
bcdDevice 2.00
iManufacturer 1 Microsoft
iProduct 2 Microsoft� Digital Media Keyboard 3000
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 60
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 106
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
Device Status: 0x0000
(Bus Powered)
