Messages in this thread | | | Date | Tue, 25 Jul 2000 19:23:39 +0100 (BST) | From | James Sutherland <> | Subject | Re: Direct access to hardware |
| |
On Tue, 25 Jul 2000, Paul Barton-Davis wrote:
> James Sutherland <jas88@cam.ac.uk> writes: > >On Tue, 25 Jul 2000, Stephen Frost wrote: > >> The kernel provides a nice clean interface to devices which conform to > >> the spec. Note that such raw access is, from what I can tell, part of > >> the spec, just the specific data sent using it isn't specified in the > >> spec and has been used by vendors to provide vendor-specific hooks, > >> which reminds me of 'SCSI generic'... > > > >It's dangerous - and the only legitimate use of this "feature" is one > >which shouldn't be done from within Linux in the first place. > > let me get this straight. are you saying that the "jaz" utility which > lets me password-protect write access to my jaz disks should not exist > under Linux ? this utility requires the ability to send that are > vendor-and-device-specific SCSI commands to the drive.
That doesn't sound like a good implementation, but I doubt these commands would be in the same category of command as the flash update ones. I'm interested in the dangerous category, not the merely undocumented bits.
James.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |