Re: questions about usbmidi

[Thomas Rabe <raven@drehmoment.org>]

Clemens Ladisch wrote:
> Thomas Rabe wrote:
> 
>>Clemens Ladisch wrote:
   >>>Well, this may indicate that the MIDI part works and that the error
is in
>>>some other part of the driver. Does the oops still happen when you don't
>>>call snd_usb_create_midi_interface?
>>
>>the driver works fine without calling snd_usb_create_midi_interface (no
>>errors, all audiochannels are available).
> 
> 
> The initialization code does nothing USB-related except allocing some URBs
> and submitting the input URBs. Please try to remove the call to
> snd_usbmidi_submit_urb at the end of _create_midi_interface.

removing the snd_usbmidi_submit_urb call also oopses. i tried some
endpoint configs like below but each crashing my machine:

.data = & (const snd_usb_midi_endpoint_info_t) {
		  .out_ep =0x06,
		  .in_ep = 0x06,
		  .out_cables =	0x003,
		  .in_cables =	0x003
}

last msg:
created 2 output and 2 input ports


.data = & (const snd_usb_midi_endpoint_info_t) {
		  .out_ep =0x06,
		  .out_cables =	0x003,
		  }

last msg:
created 2 output and 0 input ports

.data = & (const snd_usb_midi_endpoint_info_t) {
		 }

last msg:
created 0 output and 0 input ports



Greetings,

Thomas Rabe.



-- mail: raven at drehmoment dot org
-- home: http://hal9000.drehmoment.org
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