diff options
| author | hselasky <hselasky@FreeBSD.org> | 2011-12-14 00:48:20 +0000 |
|---|---|---|
| committer | hselasky <hselasky@FreeBSD.org> | 2011-12-14 00:48:20 +0000 |
| commit | 4109c91af29dcf4def6bc00f2bb1aec47bfff734 (patch) | |
| tree | 804146607f8f403ef74b51b5b2f40e91b96b37a0 /sys/dev/sound | |
| parent | 7076389cec83009f9046b6c6e2695fe340a63802 (diff) | |
| download | FreeBSD-src-4109c91af29dcf4def6bc00f2bb1aec47bfff734.zip FreeBSD-src-4109c91af29dcf4def6bc00f2bb1aec47bfff734.tar.gz | |
Stop USB audio transfers early so that any audio applications
will time out and close opened /dev/dspX.Y device(s), if
any. This is a workaround because we cannot unregister PCM
devices while the audio character device is in use.
Add a missing inclusion guard.
MFC after: 1 weeks
Diffstat (limited to 'sys/dev/sound')
| -rw-r--r-- | sys/dev/sound/usb/uaudio.c | 10 | ||||
| -rw-r--r-- | sys/dev/sound/usb/uaudio.h | 5 |
2 files changed, 14 insertions, 1 deletions
diff --git a/sys/dev/sound/usb/uaudio.c b/sys/dev/sound/usb/uaudio.c index de76f28..e6b4a1b 100644 --- a/sys/dev/sound/usb/uaudio.c +++ b/sys/dev/sound/usb/uaudio.c @@ -765,7 +765,15 @@ uaudio_detach(device_t dev) { struct uaudio_softc *sc = device_get_softc(dev); - if (bus_generic_detach(dev)) { + /* + * Stop USB transfers early so that any audio applications + * will time out and close opened /dev/dspX.Y device(s), if + * any. + */ + uaudio_chan_stop(&sc->sc_play_chan); + uaudio_chan_stop(&sc->sc_rec_chan); + + if (bus_generic_detach(dev) != 0) { DPRINTF("detach failed!\n"); } sbuf_delete(&sc->sc_sndstat); diff --git a/sys/dev/sound/usb/uaudio.h b/sys/dev/sound/usb/uaudio.h index 622cb3b..10c10de 100644 --- a/sys/dev/sound/usb/uaudio.h +++ b/sys/dev/sound/usb/uaudio.h @@ -27,6 +27,9 @@ /* prototypes from "uaudio.c" used by "uaudio_pcm.c" */ +#ifndef _UAUDIO_H_ +#define _UAUDIO_H_ + struct uaudio_chan; struct uaudio_softc; struct snd_dbuf; @@ -63,3 +66,5 @@ extern uint32_t uaudio_mixer_setrecsrc(struct uaudio_softc *sc, uint32_t src); int uaudio_get_vendor(device_t dev); int uaudio_get_product(device_t dev); int uaudio_get_release(device_t dev); + +#endif /* _UAUDIO_H_ */ |
