[linux-usb-devel] [PATCH 2.5.17, 4 of 4] audio, set urb->interval

[David Brownell]

Hi,

This sets urb->interval in two places it hadn't previously been set,
allowing things like SOX and XMMS to play through usb audio.

Using this and the previous patches, I was able to verify playback
of some Ogg Vorbis encoded music using most of the 2.5.17 host
controller drivers.  However, "uhci-hcd" and "usb-uhci-hcd" did
not want to bind the audio driver:  reading the config descriptor
(in audio.c) stalled rather consistently.  That failure was seen
with the other USB 1.1 drivers too, but not as consistently.

- Dave

--- ./drivers/usb-dist/class/audio.c    Tue May 21 08:32:13 2002
+++ ./drivers/usb/class/audio.c Tue May 21 17:20:48 2002
@@ -1221,6 +1221,7 @@
                offs += cnt;
                cp += cnt;
        }
+       urb->interval = 1;
        if (err)
                u->dma.error++;
        if (u->dma.mapped) {
@@ -1291,6 +1292,7 @@
                urb->iso_frame_desc[i].length = 3;
                urb->iso_frame_desc[i].offset = offs;
        }
+       urb->interval = 1;
        return 0;
 }