[RFC] change in /proc/devices

[Andre Hedrick]

On Thu, 27 Jan 2000, Alexander Viro wrote:

> 
> 
> On 22 Jan 2000, david parsons wrote:
> 
> > In article <linux.kernel.Pine.GSO.4.10.10001222307410.27195-100000 en weyl.math.psu.edu>,
> > Alexander Viro  <viro en math.psu.edu> wrote:
> > 
> > >(I _really_ don't see the point in separate names for IDE interfaces here,
> > 
> >     Because, unlike scsi, ide majors are randomly scattered all over g-d's
> >     creation.   If you've got some (puke) userland script faking devfs
> >     (like recent MAKEDEV's) it will probably care about the difference
> >     between ide0, ide1, ide2, and so on.
> > 
> >     Changing sort order shouldn't matter, but pulling information out does.
> 
> Humpf... You know, there may be a better way to do it. What would you say
> about:
> 
> $ cat /proc/drivers/block/devices
> 0300[40] hda
> 0340[40] hdb
> 2100[40] hde
  2100[40] hdc not e
> 2140[40] hdf
  2140[40] hdd not f

0300 hda, 0340 hdb
2100 hdc, 2140 hdd

/linux/init/main.c

#ifdef CONFIG_BLK_DEV_IDE
        { "hda",     0x0300 },
        { "hdb",     0x0340 },
        { "hdc",     0x1600 },
        { "hdd",     0x1640 },
        { "hde",     0x2100 },
        { "hdf",     0x2140 },
        { "hdg",     0x2200 },
        { "hdh",     0x2240 },
        { "hdi",     0x3800 },
        { "hdj",     0x3840 },
        { "hdk",     0x3900 },
        { "hdl",     0x3940 },
        { "hdm",     0x5800 },
        { "hdn",     0x5840 },
        { "hdo",     0x5900 },
        { "hdp",     0x5940 },
        { "hdq",     0x5A00 },
        { "hdr",     0x5A40 },
        { "hds",     0x5B00 },
        { "hdt",     0x5B40 },
#endif

> 0800[10] sda
> etc.
> If anything, it simplifies MAKEDEV-style scripts big way. And has a benefit
> of making them work with any allocation scheme for device numbers. Format
> is obvious: "%04x[%x] %s", first_device_number, amount, name. If you
> really want it we might add driver name in the end of the thing, but that
> might be an overkill. Comments?
> 
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo en vger.rutgers.edu
> Please read the FAQ at http://www.tux.org/lkml/
> 

Andre Hedrick
The Linux ATA/IDE guy

THE USE OF EMAIL FOR THE TRANSMISSION OF UNSOLICITED COMMERCIAL
MATERIAL IS PROHIBITED UNDER FEDERAL LAW (47 USC 227). Violations may
result in civil penalties and claims of $500.00 PER OCCURRENCE
(47 USC 227[c]).  Commercial spam WILL be forwarded to postmasters.



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo en vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/