El Mié 14 Ago 2002 14:57, Michael Martin escribió: > Does anyone know what the situation is with ALSA and usb midi in?
I'm using successfully two USB-MIDI devices: a Roland/Edirol UM-2 and a Midiman Midisport 2x2 with ALSA. I have seen some reports about many other USB MIDI devices working, including Evolution's keyboards. > I'm having trouble setting this up. I compiled and installed successfully > (I think) the midid (usb midi daemon from http:// > www.informatik.uni-halle.de/~ladischc/usbmidid.html), plugged a USB MIDI > Compatible input device, followed instructions and the system log reported > that I could not find the correct driver. The daemon loading system is based in linux-hotplug. I had seen that if a device has an AudioControl interface and a MIDIStreaming one, certain hotplug versions only report the AudioControl interface to the loader. You can try a dirty workaround for this, changing the first line of /etc/hotplug/usb.usermap from: snd-usbmidi 0x0180 0 0 0 0 0 0 0 0x01 0x03 0 0 to: snd-usbmidi 0x0180 0 0 0 0 0 0 0 0x01 0x01 0 0 Note that if you have also some USB digital audio devices in your system, this will try to load (erroneusly) the ALSA USB-MIDI daemon for these devices, as the AudioControl interface is a common interface subclass for both device types. Another reversed problem with hotplug may be that some kernel USB-audio modules can claim (erroneusly again) the MIDI divices. In this case, you can include the offending driver name in /etc/hotplug/blacklist and load the ALSA kernel drivers with kmod and /etc/modules.conf > According to the URL above, usb midi has been integrated into the ALSA > kernel, should I therefore download the latest ALSA, compile and install? > If so, which version? The USB-MIDI daemon (user space driver) is deprecated now, and doesn't provide a rawmidi interface, only the sequencer client. You can try the kernel driver version instead. It is in the current CVS. See: http://www.alsa-project.org/download.php3 After you (hopefully) success with this stuff, a report about your working devices will be appreciated (CC: alsa-devel list), in order to include them in the alsa-matrix: http://www.alsa-project.org/alsa-doc/ Regards, Pedro ------------------------------------------------------- This sf.net email is sponsored by: Dice - The leading online job board for high-tech professionals. Search and apply for tech jobs today! http://seeker.dice.com/seeker.epl?rel_code=31 _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
