On Oct 2, 2008, at 1:25 PM, Christopher Moore wrote: > Hey everyone, > > I have a question about usage path and formatting a > hid_set_output/input_report. > > Given the output below, I'm trying to: > > send a report to: Report ID #4, I believe the Path to be: > PATHLEN = 2 > PATH_OUT = [0x000B0001,0x0014002C] or is it [0x0B01,0x142C]? > SEND_PACKET_LEN = 8
(By the way, if you're using Python, it calculates the length of the list/tuple before passing that to the C portion of libhid. So PATHLEN is not needed.) It's the first one - 0x000B0001 etc. The elements of the usage path are 32-bit numbers, composed of the usage page in the upper 16 bits, and the usage in the lower 16 bits. > receive a report from: Report ID #3 (same as above ... which seems > wierd...) > PATHLEN = 2 > PATH_OUT = [0x000B0001,0x0014002C] or is it [0x0B01,0x142C]? > RECEIVE_PACKET_LEN = 7 > > Is my assumption/formatting correct? I think so. It's OK to have the same path for inputs, outputs and features. (For instance, with a file, you can read or write to it.) You just have to use the proper function for each item. -- Charles Lepple _______________________________________________ libhid-discuss mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/libhid-discuss
