I mean, if I do aplay -D plughw:CIT200,0 somewav.wav, nothing plays ... nor does arecord.
I sent an email to libusb as well. It seems that there's an HID interface on this device that I need to talk to. Once I figure that out (I'm reading the hid docs as we speak), I would just "claim" that interface and send/recieve commands there. *** fingers crossed ... that should make it work. Because the kernel already detects the devices properly (as sound and hid ), I suppose they're already "active". I just need to figure out how to talk to them. > What do you mean by "not activated", does any write or read operation > raise an exception? > > Wander > > 2008/9/2 Christopher Moore <[EMAIL PROTECTED]>: >> Hey everyone, >> >> I'm trying to write my first program with pyUSB. I have already figured >> out how to identify my device, open it, add it to a handle, close it and >> claim it's interface. >> >> Here's my situation: >> >> The kernel recognizes my device ( a linksys cit200) as a device already >> and it actually shows up as a plughw device. The problem is the device >> is >> not "activated" My question is, do I have to claimInterface this device >> to send/receive signals to it? For now, I just want to see if I can >> "enable/activate" it, so the mic/speaker will work on the thing. >> >> Right now, in order for me to claim the interface, I have to >> detachKernelDriver each interface (there are 4 of them, 3 alsa/sound, 1 >> hid), then setConfiguration, then claimInterface. In doing so, I lose >> ... >> it showing up as those devices. >> >> >> Example Code: >> --------------------------------------------- >> import usb >> >> # linksys CIT200 Device Info >> vendor_id = 5041 >> product_id = 29 >> >> buses = usb.busses() >> >> for bus in buses : >> for device in bus.devices : >> if device.idVendor == vendor_id : >> if device.idProduct == product_id : >> # found the CIT200 >> linksys = device >> >> # open device >> handle = linksys.open() >> >> >> # setup interface and configs ... there are 4 interfaces for this >> device... >> config = linksys.configurations[0] >> interface = config.interfaces[0][0] >> >> # detach kernel drivers >> handle.detachKernelDriver(0) >> handle.detachKernelDriver(1) >> handle.detachKernelDriver(2) >> handle.detachKernelDriver(3) >> >> # set configuration and claim interface(s?) >> handle.setConfiguration(config) >> handle.claimInterface(interface) >> handle.setAltInterface(interface) >> --------------------------------------------- >> >> >> Any help would be appreciated. I will probably have a few more >> questions >> to follow :) >> >> Thanks >> >> ------------------------------------------------------------------------- >> This SF.Net email is sponsored by the Moblin Your Move Developer's >> challenge >> Build the coolest Linux based applications with Moblin SDK & win great >> prizes >> Grand prize is a trip for two to an Open Source event anywhere in the >> world >> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >> _______________________________________________ >> Pyusb-users mailing list >> Pyusb-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/pyusb-users >> > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win great > prizes > Grand prize is a trip for two to an Open Source event anywhere in the > world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Pyusb-users mailing list > Pyusb-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pyusb-users > > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Pyusb-users mailing list Pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
