2011/3/15 Andrew Errington <a.erring...@lancaster.ac.uk>: > On Sun, 13 Mar 2011 23:34:49 wander.lairson wrote: >> >> You have only one out endpoint, endpoint 1. It is probably this >> endpoint you should write to, but before it you must select this >> interface through a call to set_interface(1,1). > > I'm sorry, I don't really understand how it all works. I still have a lot of > reading to do. However, I do have some success to report. > > I discovered this person's webpage. He is using a CM108, but I (now) know > that SSS1623 GPIO is compatible with CM108. > > http://mgrela.rootnode.net/yaesu-usb-rif/ > > I examined the new directories created under /dev, including /dev/hidraw0. I > compiled his example code. I edited the code to use GPIO0, not GPIO3. The > first three lines are missing and should be: > > #include <stdio.h> > #include <stdlib.h> > #include <sys/types.h> > > Then, as root, I ran the code as follows: > > ./a.out > /dev/hidraw0 > > This basically dumps a 5-byte packet to /dev/hidraw0 > > This all works 'out of the box'. I don't have to detach any interfaces, and > the operation of the sound card is unaffected (other programs can use it > independently of this test code). If I give a user write permission > to /dev/hidraw0 then I don't have to be root. > > So, how can I achieve the same thing with pyUSB? What is the relationship > between the endpoints and /dev/hidraw0? > > Should I use pyUSB for this application? What are the pitfalls of simply > writing to /dev/hidraw0? > If the driver provides what you need, you do better using it.
-- Best Regards, Wander Lairson Costa LCoN - Laboratório de Computação Natural - Natural Computing Laboratory (http://www.mackenzie.com.br/lcon.html) Programa de Pós-Graduação em Engenharia Elétrica (PPGEE) Faculdade de Computação e Informática (FCI) Universidade Presbiteriana Mackenzie - SP - Brazil ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
