CCW_DEVICE_HALT(9) The ccw bus CCW_DEVICE_HALT(9)

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.

COPYRIGHT Kernel Hackers Manual 2.6. September 2010 CCW_DEVICE_HALT(9)