Log Sense page and subpage

This ioctl of the SIOC_LOG_SENSE10_PAGE issues a Log Sense(10) command and returns log sense data for a specific page and subpage. This ioctl command is enhanced to add a subpage variable from the log sense page. It returns a log sense page or subpage from the device. The wanted page is selected by specifying the page_code or subpage_code in the structure. Optionally, a specific parm pointer, also known as a parm code, and the number of parameter bytes can be specified with the command.