Z8530_CHANNEL_LOAD(9) Public Functions Provided Z8530_CHANNEL_LOAD(9)NAME
z8530_channel_load - Load channel data
SYNOPSIS
int z8530_channel_load(struct z8530_channel * c, u8 * rtable);
ARGUMENTS
c
Z8530 channel to configure
rtable
table of register, value pairs
FIXME
ioctl to allow user uploaded tables
Load a Z8530 channel up from the system data. We use +16 to indicate the "prime" registers. The value 255 terminates the table.
AUTHOR
Alan Cox <alan@lxorguk.ukuu.org.uk>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 Z8530_CHANNEL_LOAD(9)
Check Out this Related Man Page
CCW_DEVICE_START_KEY(9) The ccw bus CCW_DEVICE_START_KEY(9)NAME
ccw_device_start_key - start a s390 channel program with key
SYNOPSIS
int ccw_device_start_key(struct ccw_device * cdev, struct ccw1 * cpa, unsigned long intparm, __u8 lpm, __u8 key, 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.
key
storage key to be used for the I/O
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_KEY(9)
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