Paul Howarth wrote:
I have a SCSI scanner that uses the sg module; I wrote a custom udev rule to identify the scanner when the SCSI adapter module detects it, and that then creates the /dev/sg* entry for it. Can't you do something like that?
I did some quick reading of udev documentation yesterday. However, I don't see how to exactly do it. A symlink for tape isn't going to work (/dev/st0 and /dev/sg1 use different set of IOCTLs, "mt -f /dev/sg1 rewind" is going to give an error for example). For the medium changer, kernel doesn't create any special device (there's no special driver for it, such as st for tapes or sd_mod for disks), the only way of accessing it is through /dev/sg0.
Unless I missed something obvious in documentation, and there is a way to tell udev "when kernel detects a device controlled by st module (char major 9), also create device nodes for sg module (char major 21)".
-- Aleksandar Milivojevic <amilivojevic@xxxxxx> Pollard Banknote Limited Systems Administrator 1499 Buffalo Place Tel: (204) 474-2323 ext 276 Winnipeg, MB R3T 1L7
