CDEV_ADD - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : Char devices

NAMEcdev_add − add a char device to the system

SYNOPSISint cdev_add(struct cdev * p, dev_t dev, unsigned count);

ARGUMENTSp the cdev structure for the device dev the first device number for which this device is responsible count the number of consecutive minor numbers corresponding to this device

DESCRIPTIONcdev_add adds the device represented by p to the system, making it live immediately​. A negative error code is returned on failure​.

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