diff options
Diffstat (limited to 'sound/core/misc.c')
| -rw-r--r-- | sound/core/misc.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/sound/core/misc.c b/sound/core/misc.c index 03fc711f412..f78cd000e88 100644 --- a/sound/core/misc.c +++ b/sound/core/misc.c @@ -21,7 +21,6 @@ #include <sound/driver.h> #include <linux/init.h> -#include <linux/sched.h> #include <linux/time.h> #include <linux/ioport.h> #include <sound/core.h> @@ -78,3 +77,31 @@ void snd_verbose_printd(const char *file, int line, const char *format, ...) EXPORT_SYMBOL(snd_verbose_printd); #endif + +#ifdef CONFIG_PCI +#include <linux/pci.h> +/** + * snd_pci_quirk_lookup - look up a PCI SSID quirk list + * @pci: pci_dev handle + * @list: quirk list, terminated by a null entry + * + * Look through the given quirk list and finds a matching entry + * with the same PCI SSID. When subdevice is 0, all subdevice + * values may match. + * + * Returns the matched entry pointer, or NULL if nothing matched. + */ +const struct snd_pci_quirk * +snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list) +{ + const struct snd_pci_quirk *q; + + for (q = list; q->subvendor; q++) + if (q->subvendor == pci->subsystem_vendor && + (!q->subdevice || q->subdevice == pci->subsystem_device)) + return q; + return NULL; +} + +EXPORT_SYMBOL(snd_pci_quirk_lookup); +#endif |