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PARPORT_CLAIM(9) | Parallel Port Devices | PARPORT_CLAIM(9) |
NAME¶
parport_claim - claim access to a parallel port deviceSYNOPSIS¶
int
parport_claim(struct pardevice * dev);
ARGUMENTS¶
devpointer to structure representing a device on
the port
DESCRIPTION¶
This function will not block and so can be used from interrupt context. If parport_claim succeeds in claiming access to the port it returns zero and the port is available to use. It may fail (returning non-zero) if the port is in use by another driver and that driver is not willing to relinquish control of the port.COPYRIGHT¶
March 2016 | Kernel Hackers Manual 3.2. |