|CCW_DEVICE_START_TIM(9)||The ccw bus||CCW_DEVICE_START_TIM(9)|
ccw_device_start_timeout_key - start a s390 channel program with timeout and key
int ccw_device_start_timeout_key(struct ccw_device * cdev, struct ccw1 * cpa, unsigned long intparm, __u8 lpm, __u8 key, unsigned long flags, int expires);
Start a S/390 channel program. When the interrupt arrives, the IRQ handler is called, either immediately, delayed (dev-end missing, or sense required) or never (no IRQ handler registered). This function notifies the device driver if the channel program has not completed during the time specified by expires. If a timeout occurs, the channel program is terminated via xsch, hsch or csch, and the device's interrupt handler will be called with an irb containing ERR_PTR(-ETIMEDOUT).
0, if the operation was successful; -EBUSY, if the device is busy, or status pending; -EACCES, if no path specified in lpm is operational; -ENODEV, if the device is not operational.
Interrupts disabled, ccw device lock held
Cornelia Huck <firstname.lastname@example.org>
|January 2017||Kernel Hackers Manual 4.8.|