Jermaine <jragin@...> writes:
>
> Xiaofan Chen <xiaofanc <at> ...> writes:
>
> >
> > Which libhid? If it is this one, it has the same problem with
> > libusb since it is based on libusb.
> > http://libhid.alioth.debian.org/
> >
> > You can however use HIDAPI and its python binding which use
> > native HID API, so you do not need the codeless kext.
> > http://www.signal11.us/oss/hidapi/
> > https://github.com/gbishop/cython-hidapi
> >
>
> Thanks Xiaofan, I will look into HIDAPI. Although, I wonder if I am
> barking up the wrong tree. Remember, I need this to run on my Raspberry Pi.
> I am thinking about moving over to Ubuntu to do all my development since
> it's Linux.
>
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Ok, I am able to read just fine in Linux, however, I have ran into another
issue.
LEDS[] = {0x04,0x1F};
ret = device.ctrl_transfer(0x21, 0x09, 0x204, 0, LEDS, 0x2);
The second byte in the LEDS array (0x1F) controls which LEDs are lit or not.
LEDs are numbered 0x1b to 0x1f and equals no LEDS. I am able to get 0x1C
through 0x1f to work, but not 0x1b and 0x0. For some reason {0x04,0x1b} is
reversed {27,4}. Same for {0x04,0x0b}, which ends up being {11,4} and
{0x04,0x0} ends up being {0,4}. What am I missing?
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