CCW_DEVICE_HALT - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : The ccw bus

NAMEccw_device_halt − halt I/O request processing

SYNOPSISint ccw_device_halt(struct ccw_device * cdev, unsigned long intparm);

ARGUMENTScdev 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

DESCRIPTIONccw_device_halt calls hsch on cdev´s subchannel​.

RETURNS0 on success, −ENODEV on device not operational, −EINVAL on invalid device state, −EBUSY on device busy or interrupt pending​.

CONTEXTInterrupts disabled, ccw device lock held

AUTHORCornelia Huck <​cornelia.huck@de.ibm.com​> Author.

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