Hi, mick crane wrote: > looking at those informative pages I think /dev/sg2 is the scanner > should that not be in group scanner ? > lrwxrwxrwx 1 root root 3 Jul 30 17:36 cdrom -> sr0 > crw-rw----+ 1 root cdrom 21, 2 Jul 30 17:36 sg2 > brw-rw----+ 1 root cdrom 11, 0 Jul 30 17:36 sr0
/dev/sg2 might be the generic SCSI device to which /dev/sr0 is connected. Each drive operation of sr is performed by the SCSI transaction facility of sg (reachable from userspace by ioctl(SG_IO)). If sg2 is an optical drive, then xorriso will accept it as SCSI-MMC drive: $ xorriso -no_rc -outdev /dev/sg4 -toc ... Drive type : vendor 'HL-DT-ST' product 'BD-RE GGW-H20L' revision 'YL03' ... If it is not an optical drive then the output is rather xorriso : FAILURE : Drive address '/dev/sg8' rejected because: not MMC and -drive_class 'caution' '/dev' If you don't have rw-access permission you get in both cases libburn : FAILURE : Cannot access '/dev/sg8' as SG_IO CDROM drive Have a nice day :) Thomas
