[bug] 2.6.8: CDROM_SEND_PACKET ioctls failing as non-root on ide scsi drives

Luke Kenneth Casson Leighton
2004-10-04T12:58:39Z

kernel 2.6.8. ioctl ("/dev/hdc", CDROM_SEND_PACKET, cmd)

commands that are failing as non-root, even when permission is granted
rwxrwxrwx to /dev/hdc, are, according to some debug info added to k3b:

GET CONFIGURATION (46)
error code: 0
sense key: NO SENSE (2)
asc: 0
ascq: 0

and:

MODE SELECT (55)
error code: 0
sense key: NO SENSE (2)
asc: 0
ascq: 0

the result is that k3b cannot determine that the drive exists, therefore
it cannot use it even though cdrecord might actually work.

as root, the following errors occur:

MODE SELECT (46)
errorcode: 70
sense key: ILLEGAL REQUEST (5)
asc: 26
ascq: 0

READ DVD STRUCTURE (ad)
errorcode: 70
sense key: NOT READY (2)
asc: 3a
ascq: 0

presumably it can be concluded that the GET CONFIGURATION ioctl command
is the one at fault.

... what gives?

l.

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