suse man page for ccw_device_start_timeout_key

Query: ccw_device_start_timeout_key

OS: suse

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

CCW_DEVICE_START_TIM(9) 					    The ccw bus 					   CCW_DEVICE_START_TIM(9)

NAME
ccw_device_start_timeout_key - start a s390 channel program with timeout and key
SYNOPSIS
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);
ARGUMENTS
cdev target ccw device cpa logical start address of channel program intparm user specific interruption parameter; will be presented back to cdev's interrupt handler. Allows a device driver to associate the interrupt with a particular I/O request. lpm defines the channel path to be used for a specific I/O request. A value of 0 will make cio use the opm. key storage key to be used for the I/O flags additional flags; defines the action to be performed for I/O processing. expires timeout value in jiffies
DESCRIPTION
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).
RETURNS
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.
CONTEXT
Interrupts disabled, ccw device lock held
AUTHOR
Cornelia Huck <cornelia.huck@de.ibm.com> Author.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 CCW_DEVICE_START_TIM(9)
Related Man Pages
ccw_device_start_key(9) - centos
ccw_device_start_timeout_key(9) - centos
ccw_device_start_timeout(9) - suse
request_irq(9) - suse
struct_ccwgroup_driver(9) - suse
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