Logitech G510s keyboard fail.

[Zaphod Beeblebrox]

So... The Logitech G510 keyboard fails.  It is one of the Logitech
keyboards with the small display incorporated in it...

when I attache it, I get the following dmesg:

ukbd2: <Logitech G510s Gaming Keyboard, class 0/0, rev 2.00/11.72, addr 10>
on usbus0
kbd4 at ukbd2
hid_get_item: Number of items(991) truncated to 255
hid_get_item: Number of items(257) truncated to 255
hid_get_item: Number of items(991) truncated to 255
hid_get_item: Number of items(257) truncated to 255
uhid1: <Logitech G510s Gaming Keyboard, class 0/0, rev 2.00/11.72, addr 10>
on usbus0
hid_get_item: Number of items(991) truncated to 255
hid_get_item: Number of items(257) truncated to 255
hid_get_item: Number of items(991) truncated to 255
hid_get_item: Number of items(257) truncated to 255
hid_get_item: Number of items(991) truncated to 255
hid_get_item: Number of items(257) truncated to 255

2:27:327]root at hit:/home/dgilbert/Downloads> usbconfig -d ugen0.5
dump_device_desc
ugen0.5: <G510s Gaming Keyboard Logitech> at usbus0, cfg=0 md=HOST spd=FULL
(12Mbps) pwr=ON (500mA)

  bLength = 0x0012
  bDescriptorType = 0x0001
  bcdUSB = 0x0200
  bDeviceClass = 0x0000  <Probed by interface class>
  bDeviceSubClass = 0x0000
  bDeviceProtocol = 0x0000
  bMaxPacketSize0 = 0x0008
  idVendor = 0x046d
  idProduct = 0xc22d
  bcdDevice = 0x1172
  iManufacturer = 0x0001  <Logitech>
  iProduct = 0x0002  <G510s Gaming Keyboard>
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001

... notably, it works under BIOS and (of course) windows.