PARPORT_CLAIM_OR_BLO(9) Parallel Port Devices PARPORT_CLAIM_OR_BLO(9)
NAME
parport_claim_or_block - claim access to a parallel port device
SYNOPSIS
int parport_claim_or_block(struct pardevice * dev);
ARGUMENTS
dev
pointer to structure representing a device on the port
DESCRIPTION
This behaves like parport_claim, but will block if necessary to wait for the port to be free. A return value of 1 indicates that it slept;
0 means that it succeeded without needing to sleep. A negative error code indicates failure.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 PARPORT_CLAIM_OR_BLO(9)
