diff options
Diffstat (limited to 'drivers/acpi/scan.c')
| -rw-r--r-- | drivers/acpi/scan.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 0745d20afb8..9271e5209ac 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -475,8 +475,10 @@ static LIST_HEAD(acpi_bus_drivers); static DECLARE_MUTEX(acpi_bus_drivers_lock); /** - * acpi_bus_match - * -------------- + * acpi_bus_match - match device IDs to driver's supported IDs + * @device: the device that we are trying to match to a driver + * @driver: driver whose device id table is being checked + * * Checks the device's hardware (_HID) or compatible (_CID) ids to see if it * matches the specified driver's criteria. */ @@ -489,8 +491,10 @@ acpi_bus_match(struct acpi_device *device, struct acpi_driver *driver) } /** - * acpi_bus_driver_init - * -------------------- + * acpi_bus_driver_init - add a device to a driver + * @device: the device to add and initialize + * @driver: driver for the device + * * Used to initialize a device via its device driver. Called whenever a * driver is bound to a device. Invokes the driver's add() and start() ops. */ @@ -603,8 +607,9 @@ static int acpi_driver_detach(struct acpi_driver *drv) } /** - * acpi_bus_register_driver - * ------------------------ + * acpi_bus_register_driver - register a driver with the ACPI bus + * @driver: driver being registered + * * Registers a driver with the ACPI bus. Searches the namespace for all * devices that match the driver's criteria and binds. Returns the * number of devices that were claimed by the driver, or a negative @@ -633,8 +638,9 @@ int acpi_bus_register_driver(struct acpi_driver *driver) EXPORT_SYMBOL(acpi_bus_register_driver); /** - * acpi_bus_unregister_driver - * -------------------------- + * acpi_bus_unregister_driver - unregisters a driver with the APIC bus + * @driver: driver to unregister + * * Unregisters a driver with the ACPI bus. Searches the namespace for all * devices that match the driver's criteria and unbinds. */ @@ -660,8 +666,9 @@ int acpi_bus_unregister_driver(struct acpi_driver *driver) EXPORT_SYMBOL(acpi_bus_unregister_driver); /** - * acpi_bus_find_driver - * -------------------- + * acpi_bus_find_driver - check if there is a driver installed for the device + * @device: device that we are trying to find a supporting driver for + * * Parses the list of registered drivers looking for a driver applicable for * the specified device. */ @@ -844,7 +851,7 @@ static void acpi_device_set_id(struct acpi_device *device, * ---- * Fix for the system root bus device -- the only root-level device. */ - if ((parent == ACPI_ROOT_OBJECT) && (type == ACPI_BUS_TYPE_DEVICE)) { + if (((acpi_handle)parent == ACPI_ROOT_OBJECT) && (type == ACPI_BUS_TYPE_DEVICE)) { hid = ACPI_BUS_HID; strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); strcpy(device->pnp.device_class, ACPI_BUS_CLASS); |