On Sat, 13 Jun 2009, Iain Hibbert wrote: > Sorry, I posted a parsed version of the report descriptor previously > though I failed to cross post: > > Collection page=Generic_Desktop usage=Mouse > Input id=2 size=1 count=1 page=Button usage=Button_1 Variable, logical range 0..1 > Input id=2 size=1 count=1 page=Button usage=Button_2 Variable, logical range 0..1 > Input id=2 size=1 count=1 page=Button usage=Button_3 Variable, logical range 0..1 > Input id=2 size=1 count=1 page=Button usage=Button_4 Variable, logical range 0..1 > Input id=2 size=4 count=1 page=0x0000 usage=0x0000 Const Variable, logical range 0..1 > Collection page=Generic_Desktop usage=Pointer > Input id=2 size=8 count=1 page=Generic_Desktop usage=X Variable Relative, logical range -127..127 > Input id=2 size=8 count=1 page=Generic_Desktop usage=Y Variable Relative, logical range -127..127 > Input id=2 size=8 count=1 page=Consumer usage=AC_Pan Variable Relative, logical range -127..127 > Input id=2 size=8 count=1 page=Generic_Desktop usage=Wheel Variable Relative, logical range -127..127 > End collection > Input id=2 size=8 count=1 page=0x00ff usage=0x00c0 Variable, logical range -127..127 > Feature id=71 size=8 count=1 page=Device_Controls usage=Battery_Strength Variable NoPref Volatile, logical range 0..100 > End collection > As you can see, there is a Feature report relating to the Battery > Strength, but I do not know what to do with that. I suppose that it is > to be polled in order to return a percentage value.. Yes, it has to be polled. But at least the initial value should be retrieved during the very initialization of the device -- both USB and Bluetooth implementations this in usbhid_init_reports()/hidp_start() -- they query INPUT and FEATURE reports during device initialization. -- Jiri Kosina SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
