>I know the IRQ and the Port - address-number of my MIDI - onboard controller. >Are these information enough to write a short MIDI-driver for alsa ? If yes,
normally, this is very, very far from the information you need. the only exception would be if it was a native MPU401 or serial MIDI device, in which case ALSA already drivers for it. writing a device driver means knowing which registers and memory locations to set, reset, read, write, and when to do it.
