On Tue, 13 Mar 2012, simon@mungewell.org wrote:

quoted

Not really, it's rather simple to use and as Mark said, it's a proper

infrastructure to use here.

quoted

We already have HID drivers which are using this -- you can look at

PicoLCD or Wiimote drivers and you'll see that it's indeed fairly
simple.

So _you_ say.... I'm getting an Oops when device attempts to init the LED
subsytem. :-(
--
Mar 13 12:54:56 ubuntu kernel: [  458.639674] Call Trace:
Mar 13 12:54:56 ubuntu kernel: [  458.641143]  [<c13498ed>] ?
device_create+0x2d/0x30
Mar 13 12:54:56 ubuntu kernel: [  458.641245]  [<c1439119>]
led_classdev_register+0x99/0xf0
Mar 13 12:54:56 ubuntu kernel: [  458.641306]  [<e0977311>]
lg4ff_init+0x2a1/0x570 [hid_logitech]
Mar 13 12:54:56 ubuntu kernel: [  458.641313]  [<e0975427>]
lg_probe+0x147/0x2c0 [hid_logitech]
--

Could you please post the full oops?

-- 
Jiri Kosina
SUSE Labs