ccw_device_halt9
Halt i/o request processing
Usage
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
Overview
ccw_device_halt calls hsch on cdev's subchannel.
Return
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
Releases
6 releases since Debian 4.0 (Etch); the text changed 5 times.