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ENABLE_CMF(9) The ccw bus ENABLE_CMF(9)

NAME

enable_cmf - switch on the channel measurement for a specific device

SYNOPSIS

int enable_cmf(struct ccw_device * cdev);

ARGUMENTS

cdev
The ccw device to be enabled

DESCRIPTION

Returns 0 for success or a negative error value.

NOTE

If this is called on a device for which channel measurement is already enabled a reset of the measurement data is triggered.

CONTEXT

non-atomic

AUTHOR

Cornelia Huck <cornelia.huck@de.ibm.com>
Author.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.