| CDEV_DEVICE_DEL(9) | Char devices | CDEV_DEVICE_DEL(9) |
NAME¶
cdev_device_del - inverse of cdev_device_add
SYNOPSIS¶
void cdev_device_del(struct cdev * cdev, struct device * dev);
ARGUMENTS¶
cdev
the cdev structure
dev
the device structure
DESCRIPTION¶
cdev_device_del is a helper function to call cdev_del and device_del. It should be used whenever cdev_device_add is used.
If dev->devt is not set it will not remove the cdev and will be equivalent to device_del.
NOTE¶
This guarantees that associated sysfs callbacks are not running or runnable, however any cdevs already open will remain and their fops will still be callable even after this function returns.
COPYRIGHT¶
| June 2023 | Kernel Hackers Manual 3.10 |