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ccw_device_start(9) [centos man page]

CCW_DEVICE_START(9)						    The ccw bus 					       CCW_DEVICE_START(9)

NAME
ccw_device_start - start a s390 channel program SYNOPSIS
int ccw_device_start(struct ccw_device * cdev, struct ccw1 * cpa, unsigned long intparm, __u8 lpm, unsigned long flags); 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. flags additional flags; defines the action to be performed for I/O processing. 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). 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 3.10 June 2014 CCW_DEVICE_START(9)

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CCW_DEVICE_START(9)						    The ccw bus 					       CCW_DEVICE_START(9)

NAME
ccw_device_start - start a s390 channel program SYNOPSIS
int ccw_device_start(struct ccw_device * cdev, struct ccw1 * cpa, unsigned long intparm, __u8 lpm, unsigned long flags); 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. flags additional flags; defines the action to be performed for I/O processing. 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). 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(9)

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