On Tue, Apr 3, 2012 at 7:14 PM, Jiri Kosina [off-list ref] wrote:

On Tue, 3 Apr 2012, Joao Paulo Rechi Vita wrote:

quoted

quoted

quoted

This is the second revision of the UHID driver. It basically allows to register
hid_ll_drivers in user-space. This is needed to implement Bluetooth HoG (HID
over GATT) as discussed earlier.

We have a first prototype implementation of the HoG plugin working
with the uhid driver \o/

I'm having problems with modifiers keys (they don't work). The USB-HID
spec says that for each modifier key pressed a bit have to be set on
the modifiers byte (byte 2) of the report array. Dumping the data both
on the HoG plugin on bluetoothd and through hidraw for the created HID
device shows that these bits are being set correctly.

Any idea of what could be wrong or additional checks that can be performed?

So hidraw shows the respective bits set properly, but they are not coming
out of /dev/input/eventX, right?

Exactly.

How about /syse/kernel/debug/hid/<device>/events, does it show the events?

Thanks for the help, but it wasn't needed. The problem was actually on
the userspace HoG->HID parsing, we're adding an additional 0x00 byte
to the beginning of the array. Now modifiers works!

-- 
João Paulo Rechi Vita
Openbossa Labs - INdT
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