[linux-audio-dev] Re: [linux-audio-user] problems with Midisport 2x2

New Message Reply About this list Date view Thread view Subject view Author view Other groups

Subject: [linux-audio-dev] Re: [linux-audio-user] problems with Midisport 2x2
From: Clemens Ladisch (clemens_AT_ladisch.de)
Date: Tue Feb 25 2003 - 09:25:36 EET

Ivica Bukvic wrote:
> I've got a small problem with my Midisport 2x2 MIDI interface. While it worked
> ok before, now for some odd reason I cannot get it to open for MIDI output
> (from the computer). I've checked the /var/log/messages and this is what I
> got:
> [...]
> It says that the device was opened with 4 input and 0 output ports. Why is
> this the case?

It's a bug in ALSA 0.9.0rc7. You could get the current CVS version, or
apply the following patch:

Index: usbmidi.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/usb/usbmidi.c,v
retrieving revision 1.18
retrieving revision 1.19
diff -u -r1.18 -r1.19
--- usbmidi.c 13 Jan 2003 09:50:26 -0000 1.18
+++ usbmidi.c 3 Feb 2003 09:58:14 -0000 1.19
@@ -821,7 +821,7 @@
                     ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT ||
                     ms_ep->bDescriptorSubtype != MS_GENERAL)
                         continue;
- if ((ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK) == USB_DIR_OUT) {
+ if ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
                         if (endpoints[epidx].out_ep) {
                                 if (++epidx >= MIDI_MAX_ENDPOINTS) {
                                         printk(KERN_WARNING "snd-usb-midi: too many endpoints\n");

HTH
Clemens

New Message Reply About this list Date view Thread view Subject view Author view Other groups

This archive was generated by hypermail 2b28 : Tue Feb 25 2003 - 09:20:31 EET