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SuSE 11.3 - man page for ccw_device_get_ciw (suse section 9)

CCW_DEVICE_GET_CIW(9)				     The ccw bus				CCW_DEVICE_GET_CIW(9)

NAME
ccw_device_get_ciw - Search for CIW command in extended sense data.
SYNOPSIS
struct ciw * ccw_device_get_ciw(struct ccw_device * cdev, __u32 ct);
ARGUMENTS
cdev ccw device to inspect ct command type to look for
DESCRIPTION
During SenseID, command information words (CIWs) describing special commands available to the device may have been stored in the extended sense data. This function searches for CIWs of a specified command type in the extended sense data.
RETURNS
NULL if no extended sense data has been stored or if no CIW of the specified command type could be found, else a pointer to the CIW of the specified command type.
AUTHOR
Cornelia Huck <cornelia.huck@de.ibm.com> Author.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 CCW_DEVICE_GET_CIW(9)


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