MISC_DEREGISTER(9) Miscellaneous Devices MISC_DEREGISTER(9)NAME
misc_deregister - unregister a miscellaneous device
int misc_deregister(struct miscdevice * misc);
device to unregister
Unregister a miscellaneous device that was previously successfully registered with misc_register. Success is indicated by a zero return, a
negative errno code indicates an error.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 MISC_DEREGISTER(9)
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DEVICE_CREATE_WITH_G(9) Device drivers infrastructure DEVICE_CREATE_WITH_G(9)NAME
device_create_with_groups - creates a device and registers it with sysfs
struct device * device_create_with_groups(struct class * class, struct device * parent, dev_t devt, void * drvdata,
const struct attribute_group ** groups, const char * fmt, ...);
pointer to the struct class that this device should be registered to
pointer to the parent struct device of this new device, if any
the dev_t for the char device to be added
the data to be added to the device for callbacks
NULL-terminated list of attribute groups to be created
string for the device's name
This function can be used by char device classes. A struct device will be created in sysfs, registered to the specified class. Additional
attributes specified in the groups parameter will also be created automatically.
A "dev" file will be created, showing the dev_t for the device, if the dev_t is not 0,0. If a pointer to a parent struct device is passed
in, the newly created struct device will be a child of that device in sysfs. The pointer to the struct device will be returned from the
call. Any further sysfs files that might be required can be created using this pointer.
Returns struct device pointer on success, or ERR_PTR on error.
the struct class passed to this function must have previously been created with a call to class_create.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 DEVICE_CREATE_WITH_G(9)