Vladimir Komendantsky wrote: > > Many M-Audio devices use DFU; in that case, the protocol is known. > > Please show the output of "lsusb -v". > > ... > bInterfaceClass 254 Application Specific Interface > bInterfaceSubClass 1 Device Firmware Update This is indeed DFU. The specification can be found at <http://www.usb.org/developers/devclass_docs/DFU_1.1.pdf>. There is a DFU downloading tool for other M-Audio devices: <http://usb-midi-fw.cvs.sourceforge.net/viewvc/usb-midi-fw/madfu-firmware/madfuload.c?view=markup> There might be a .bin file in the Windows upgrade package that you could use directly. However, I don't know if this device has any quirks that would make it incompatible. > > Is it class compliant? > > It's said to be in the manual. In jack, it announces itself as > "20:ProKeys Sono 88" with two input ports "MIDI 1" and "MIDI 2" and > one output port "MIDI 1". However, the manual also describes an audio > input port (a USB audio connection from a computer to the keyboard). According to the descriptors, it has both audio playback and capture. > So far I cannot connect it. Does it show up in the output of "aplay -l" and "arecord -l"? Does playing/recording with these tools work? Best regards, Clemens -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
