diff options
| -rw-r--r-- | drivers/base/auxiliary.c | 10 | ||||
| -rw-r--r-- | include/linux/auxiliary_bus.h | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/base/auxiliary.c b/drivers/base/auxiliary.c index 9fd3820d1f8a..11949d6bcda4 100644 --- a/drivers/base/auxiliary.c +++ b/drivers/base/auxiliary.c @@ -502,6 +502,16 @@ struct auxiliary_device *__devm_auxiliary_device_create(struct device *dev, } EXPORT_SYMBOL_GPL(__devm_auxiliary_device_create); +/** + * dev_is_auxiliary - check if the device is an auxiliary one + * @dev: device to check + */ +bool dev_is_auxiliary(struct device *dev) +{ + return dev->bus == &auxiliary_bus_type; +} +EXPORT_SYMBOL_GPL(dev_is_auxiliary); + void __init auxiliary_bus_init(void) { WARN_ON(bus_register(&auxiliary_bus_type)); diff --git a/include/linux/auxiliary_bus.h b/include/linux/auxiliary_bus.h index 4086afd0cc6b..bc09b55e3682 100644 --- a/include/linux/auxiliary_bus.h +++ b/include/linux/auxiliary_bus.h @@ -271,6 +271,8 @@ struct auxiliary_device *__devm_auxiliary_device_create(struct device *dev, __devm_auxiliary_device_create(dev, KBUILD_MODNAME, devname, \ platform_data, 0) +bool dev_is_auxiliary(struct device *dev); + /** * module_auxiliary_driver() - Helper macro for registering an auxiliary driver * @__auxiliary_driver: auxiliary driver struct |