Man page 9 : ccw_device_get_ciw

ccw_device_get_ciw - Search for CIW command in extended sense data.

struct ciw * ccw_device_get_ciw(struct ccw_device *  cdev , __u32  ct );

cdev
    ccw device to inspect

ct
    command type to look for

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.

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.

Cornelia Huck <>
    Author.