Re: what binds to port
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
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