Shard Gupta wrote:
Hello list,
This is my first posting to this mailing list.
If I am writing a new device driver then is it always necessary to
write a new system call, and how to call specific driver functionality
from that system call.
No. Generally new system calls are not written by driver writers.
When you write character driver, you would create an instance of struct
file_operations and assign function pointers. In case of network
drivers, struct net_device should be filled with the corresponding file
pointers.
Read Linux Device driver book freely available on net.
Thanks,
Om.
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