On Fri, 20 May 2005, Linus Torvalds wrote:
On Fri, 20 May 2005, Richard B. Johnson wrote:
Why can't I consistantly write to the VGA screen regen buffer
and have it appear on the screen????
Don't do it.
Well I started out opening /dev/vcs, lseeking to 64, and writing
a string. This "sort of" worked, but screen attributes got messed
up so the "blue" screen attribute 0x17 ended up eventually being
black.
So, I decided to directly write. It doesn't work as you explain
because hardware scroll is being used.
Anyway, you really _really_ shouldn't do anything like this in the first
place.
Linus
Yes, and I didn't want to. However a customer wants some status to
be always displayed in the upper-right-hand corner of a 4x5 LCD
with a tiny CPU board.
Cheers,
Dick Johnson
Penguin : Linux version 2.6.11.9 on an i686 machine (5554.17 BogoMips).
Notice : All mail here is now cached for review by Dictator Bush.
98.36% of all statistics are fiction.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
