what is major number and what is minor number..?
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Answer Posted / daves
The major number identifies the device driver that owns the
device. The major number is mapped to its driver in the
/etc/name_to_major file.
The minor number identifies which driver device instance is
being managed. Each driver has its own numbering convention.
For example, disks are numbered as ((instance # * 8) + slice
#). Others may be numbered sequentially or as the driver
author felt like it.
You can see exactly which driver owns a device in the
/etc/path_to_inst file or sysdef -dD command, among other
places.
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