CCW_DEVICE_HALT
Section: The ccw bus (9)
Updated: February 2011
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NAME
ccw_device_halt - halt I/O request processing
SYNOPSIS
-
int ccw_device_halt(struct ccw_device * cdev, unsigned long intparm);
ARGUMENTS
cdev
-
- target ccw device
intparm
-
interruption parameter; value is only used if no I/O is outstanding, otherwise the intparm associated with the I/O request is returned
DESCRIPTION
ccw_device_halt
calls hsch on
cdev's subchannel.
RETURNS
0
on success, -ENODEV
on device not operational, -EINVAL
on invalid device state, -EBUSY
on device busy or interrupt pending.
CONTEXT
Interrupts disabled, ccw device lock held
AUTHOR
Cornelia Huck <cornelia.huck@de.ibm.com>
-
Author.
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