Re: [PATCH] ata: libata-core: Return sense data in descriptor format by default

On 24/08/12 05:15PM, Niklas Cassel wrote:

Sense data can be in either fixed format or descriptor format.

SAT-6 revision 1, 10.4.6 Control mode page, says that if the D_SENSE bit is set to zero (i.e., fixed format sense data), then the SATL should return fixed format sense data for ATA PASS-THROUGH commands.

A lot of user space programs incorrectly assume that the sense data is in descriptor format, without checking the RESPONSE CODE field of the returned sense data (to see which format the sense data is in).

Tested-by: Christian Heusel christian@heusel.eu