Update of /cvsroot/alsa/alsa-kernel/usb
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv1776/alsa-kernel/usb
Modified Files:
usbmidi.c
Log Message:
prevent twenty-seconds wait when unplugging USB MIDI device with a port subscription
Index: usbmidi.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/usb/usbmidi.c,v
retrieving revision 1.24
retrieving revision 1.25
diff -u -r1.24 -r1.25
--- usbmidi.c 3 Mar 2004 11:35:15 -0000 1.24
+++ usbmidi.c 8 Mar 2004 09:34:05 -0000 1.25
@@ -453,8 +453,16 @@
usbmidi_out_port_t* port =
(usbmidi_out_port_t*)substream->runtime->private_data;
port->active = up;
- if (up)
+ if (up) {
+ if (port->ep->umidi->chip->shutdown) {
+ /* gobble up remaining bytes to prevent wait in
+ * snd_rawmidi_drain_output */
+ while (!snd_rawmidi_transmit_empty(substream))
+ snd_rawmidi_transmit_ack(substream, 1);
+ return;
+ }
tasklet_hi_schedule(&port->ep->tasklet);
+ }
}
static int snd_usbmidi_input_open(snd_rawmidi_substream_t* substream)
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