1__REGISTER_CHRDEV(9)             Char devices             __REGISTER_CHRDEV(9)
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3
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NAME

6       __register_chrdev - create and register a cdev occupying a range of
7       minors
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SYNOPSIS

10       int __register_chrdev(unsigned int major, unsigned int baseminor,
11                             unsigned int count, const char * name,
12                             const struct file_operations * fops);
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ARGUMENTS

15       major
16           major device number or 0 for dynamic allocation
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18       baseminor
19           first of the requested range of minor numbers
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21       count
22           the number of minor numbers required
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24       name
25           name of this range of devices
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27       fops
28           file operations associated with this devices
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DESCRIPTION

31       If major == 0 this functions will dynamically allocate a major and
32       return its number.
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34       If major > 0 this function will attempt to reserve a device with the
35       given major number and will return zero on success.
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37       Returns a -ve errno on failure.
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39       The name of this device has nothing to do with the name of the device
40       in /dev. It only helps to keep track of the different owners of
41       devices. If your module name has only one type of devices it's ok to
42       use e.g. the name of the module here.
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45Kernel Hackers Manual 3.10         June 2019              __REGISTER_CHRDEV(9)
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