From 59f4432658f856842e90816d60b0d292e3e68334 Mon Sep 17 00:00:00 2001 From: Nicola Soranzo Date: Thu, 19 Feb 2009 13:41:56 -0300 Subject: [PATCH] V4L/DVB (10659): em28xx: register device to soundcard for sysfs As explained in "Writing an ALSA driver" (T. Iwai), audio drivers should set the struct device for the card before registering the card instance. This will add the correct /sys/class/sound/cardN/device symlink, so HAL can see the device and ConsoleKit sets its ACL permissions for the logged-in user. For em28xx audio capture cards found e.g. in Hauppauge WinTV-HVR-900 (R2), this patch fixes errors like: ALSA lib pcm_hw.c:1429:(_snd_pcm_hw_open) Invalid value for card Error opening audio: Permission denied when running mplayer as a normal user. Signed-off-by: Nicola Soranzo Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/em28xx/em28xx-audio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c index 5d882a44e3eee..2ac738fa6a07e 100644 --- a/drivers/media/video/em28xx/em28xx-audio.c +++ b/drivers/media/video/em28xx/em28xx-audio.c @@ -463,6 +463,8 @@ static int em28xx_audio_init(struct em28xx *dev) pcm->info_flags = 0; pcm->private_data = dev; strcpy(pcm->name, "Empia 28xx Capture"); + + snd_card_set_dev(card, &dev->udev->dev); strcpy(card->driver, "Empia Em28xx Audio"); strcpy(card->shortname, "Em28xx Audio"); strcpy(card->longname, "Empia Em28xx Audio"); -- 2.39.5