Messages in this thread | | | Date | Wed, 29 Jul 1998 23:02:19 +0200 (CEST) | From | Geert Uytterhoeven <> | Subject | Re: MAKEDEV on RH5 i386 added fb |
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On Wed, 29 Jul 1998, Brian K. White wrote: > > It should look like: > > fb) > > major=`Major fb` || continue > > makedev fb c $major 0 $vcs > > for base in 0 1 2 3; do > > minor=`math $base \* 32` > > makedev fb$base c $major $minor $vcs > > done > > > > Geert, I think we should get rid of the confusing part of devices.t?t > > ============ > > > > > On Wed, 29 Jul 1998, Jakub Jelinek wrote: > > > Geert, I think we should get rid of the confusing part of devices.t?t, which > > > writes about (fb minors & 0x1f) != 0. > > > > I know. Unfortunately Peter Anvin doesn't seem to find time to send his updates > > to his colleague at work. I sent the updates in April or so, and he promised to > > merge them soon with Linus. > > > > Peter: please... > > Is that the whole thing? just /dev/fb[""0123] 29 [0 0 32 64 96] ? OK, thanks. > btw, I just discovered MAKEDEV update isn't working after all, so I'll post > a new patch later.
The official numbers are
| We agreed upon the further standardization of the frame buffer devices | (character device 29) in 2.1.x. Now it's | | c 29 0 /dev/fb0 First frame buffer | c 29 32 /dev/fb1 Second frame buffer | c 29 64 /dev/fb2 ... | c 29 96 /dev/fb3 | c 29 128 /dev/fb4 | c 29 160 /dev/fb5 | c 29 192 /dev/fb6 | c 29 224 /dev/fb7 | | for all architectures. We may fill up the in between minor numbers later to | support more than 8 frame buffer devices. | | On Linux/m68k, soft links /dev/fb%dcurrent -> /dev/fb%d may be present for | backwards compatibility, but these are being phased out.
Greetings,
Geert
-- Geert Uytterhoeven Geert.Uytterhoeven@cs.kuleuven.ac.be Wavelets, Linux/{m68k~Amiga,PPC~CHRP} http://www.cs.kuleuven.ac.be/~geert/ Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium
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