diff options
Diffstat (limited to 'sound/hda/hda_bus_type.c')
-rw-r--r-- | sound/hda/hda_bus_type.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sound/hda/hda_bus_type.c b/sound/hda/hda_bus_type.c new file mode 100644 index 000000000000..519914a12e8a --- /dev/null +++ b/sound/hda/hda_bus_type.c @@ -0,0 +1,42 @@ +/* + * HD-audio bus + */ +#include <linux/init.h> +#include <linux/device.h> +#include <linux/module.h> +#include <linux/export.h> +#include <sound/hdaudio.h> + +MODULE_DESCRIPTION("HD-audio bus"); +MODULE_LICENSE("GPL"); + +static int hda_bus_match(struct device *dev, struct device_driver *drv) +{ + struct hdac_device *hdev = dev_to_hdac_dev(dev); + struct hdac_driver *hdrv = drv_to_hdac_driver(drv); + + if (hdev->type != hdrv->type) + return 0; + if (hdrv->match) + return hdrv->match(hdev, hdrv); + return 1; +} + +struct bus_type snd_hda_bus_type = { + .name = "hdaudio", + .match = hda_bus_match, +}; +EXPORT_SYMBOL_GPL(snd_hda_bus_type); + +static int __init hda_bus_init(void) +{ + return bus_register(&snd_hda_bus_type); +} + +static void __exit hda_bus_exit(void) +{ + bus_unregister(&snd_hda_bus_type); +} + +subsys_initcall(hda_bus_init); +module_exit(hda_bus_exit); |