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authorTakashi Iwai <tiwai@suse.de>2021-07-29 09:44:03 +0200
committerTakashi Iwai <tiwai@suse.de>2021-08-02 09:06:07 +0200
commit5b517854420b53541af09dc9e097e93673c9226f (patch)
treea30e76e26649348bba7e7205f241745ae4fb86b5 /sound/usb
parent68e851ee4cfd2a3c96f10d984192c2c8abe9a104 (diff)
ALSA: usb-audio: Add quirk_flags module option
This patch adds a new module option, quirk_flags, for allowing user to try some additional device-specific quirk behavior more easily. When this option is set to non-zero, it overrides the quirk_flags, and the specific workaround is applied. Link: https://lore.kernel.org/r/20210729074404.19728-5-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/card.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 9535df39c02f..cf8f3953f78f 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -71,6 +71,7 @@ static bool autoclock = true;
static char *quirk_alias[SNDRV_CARDS];
static char *delayed_register[SNDRV_CARDS];
static bool implicit_fb[SNDRV_CARDS];
+static unsigned int quirk_flags[SNDRV_CARDS];
bool snd_usb_use_vmalloc = true;
bool snd_usb_skip_validation;
@@ -98,6 +99,8 @@ module_param_array(delayed_register, charp, NULL, 0444);
MODULE_PARM_DESC(delayed_register, "Quirk for delayed registration, given by id:iface, e.g. 0123abcd:4.");
module_param_array(implicit_fb, bool, NULL, 0444);
MODULE_PARM_DESC(implicit_fb, "Apply generic implicit feedback sync mode.");
+module_param_array(quirk_flags, uint, NULL, 0444);
+MODULE_PARM_DESC(quirk_flags, "Driver quirk bit flags.");
module_param_named(use_vmalloc, snd_usb_use_vmalloc, bool, 0444);
MODULE_PARM_DESC(use_vmalloc, "Use vmalloc for PCM intermediate buffers (default: yes).");
module_param_named(skip_validation, snd_usb_skip_validation, bool, 0444);
@@ -631,7 +634,10 @@ static int snd_usb_audio_create(struct usb_interface *intf,
INIT_LIST_HEAD(&chip->midi_list);
INIT_LIST_HEAD(&chip->mixer_list);
- snd_usb_init_quirk_flags(chip);
+ if (quirk_flags[idx])
+ chip->quirk_flags = quirk_flags[idx];
+ else
+ snd_usb_init_quirk_flags(chip);
card->private_free = snd_usb_audio_free;