Hi All, I have been bashing my head against the keyboard all day trying to make my little USB relay work under Linux (Ubuntu Jaunty if it matters) I don't have a great deal of experience with linux but after some reading I discovered that the best way to talk to the relay (which detects as a HID device) was to use the libhid library.
So far I have tweaked the example code so that it looks for my device and set up the commands to make an interrupt write to try and enable the relays. In Windows I successfully control the device using VB and issue the commands to control the relays using Convert.ToByte(Int) The board has 4 relays and by issuing Convert.ToByte(6) for example I can open a single relay, Convert.ToByte(5) closes the relay. (7) and (8) control another relay.. you get the idea. Now the example code reports back ok when I issue the interrupt write but nothing happens on the device. I think I may be sending the wrong commands but I'm not too sure.. I figured that I should send one byte, of 8 bits..? so I have tried to send 0xFF and also 255 but neither does anything. The lsusb output is here for my device; http://pastebin.com/m48287552 Here is the modified hid_test.c that I'm currently using; http://pastebin.com/d1a6f40da Any pointers would be appreciated! Thanks
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