ccw_device_start — start a s390 channel program
int ccw_device_start ( | struct ccw_device * | cdev, |
| struct ccw1 * | cpa, | |
| unsigned long | intparm, | |
| __u8 | lpm, | |
| unsigned long | flags); |
cdevtarget ccw device
cpalogical 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.
lpmdefines the channel path to be used for a specific I/O request. A value of 0 will make cio use the opm.
flagsadditional flags; defines the action to be performed for I/O processing.
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).