ccw_device_halt (9) Linux Manual Page
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.
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
Author
Cornelia Huck <cornelia.huck [at] de.ibm.com>
- Author.