diff options
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-core.c | 28 | ||||
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx.h | 4 |
2 files changed, 32 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c index 898fb9bd88a2..6de41c6a0770 100644 --- a/drivers/media/usb/em28xx/em28xx-core.c +++ b/drivers/media/usb/em28xx/em28xx-core.c @@ -1106,3 +1106,31 @@ void em28xx_close_extension(struct em28xx *dev) list_del(&dev->devlist); mutex_unlock(&em28xx_devlist_mutex); } + +int em28xx_suspend_extension(struct em28xx *dev) +{ + const struct em28xx_ops *ops = NULL; + + em28xx_info("Suspending extensions"); + mutex_lock(&em28xx_devlist_mutex); + list_for_each_entry(ops, &em28xx_extension_devlist, next) { + if (ops->suspend) + ops->suspend(dev); + } + mutex_unlock(&em28xx_devlist_mutex); + return 0; +} + +int em28xx_resume_extension(struct em28xx *dev) +{ + const struct em28xx_ops *ops = NULL; + + em28xx_info("Resuming extensions"); + mutex_lock(&em28xx_devlist_mutex); + list_for_each_entry(ops, &em28xx_extension_devlist, next) { + if (ops->resume) + ops->resume(dev); + } + mutex_unlock(&em28xx_devlist_mutex); + return 0; +} diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h index 32d8a4bb7961..9b02f15485d1 100644 --- a/drivers/media/usb/em28xx/em28xx.h +++ b/drivers/media/usb/em28xx/em28xx.h @@ -713,6 +713,8 @@ struct em28xx_ops { int id; int (*init)(struct em28xx *); int (*fini)(struct em28xx *); + int (*suspend)(struct em28xx *); + int (*resume)(struct em28xx *); }; /* Provided by em28xx-i2c.c */ @@ -758,6 +760,8 @@ int em28xx_register_extension(struct em28xx_ops *dev); void em28xx_unregister_extension(struct em28xx_ops *dev); void em28xx_init_extension(struct em28xx *dev); void em28xx_close_extension(struct em28xx *dev); +int em28xx_suspend_extension(struct em28xx *dev); +int em28xx_resume_extension(struct em28xx *dev); /* Provided by em28xx-cards.c */ extern struct em28xx_board em28xx_boards[]; |