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[PATCH] vesafb: Add blanking support

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Add rudimentary support by manipulating the VGA registers.  However, not
all vesa modes are VGA compatible, so VGA compatiblity is checked first.
Only 2 levels are supported, powerup and powerdown.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Antonino A. Daplas 2005-09-09 13:04:31 -07:00 • committed by Linus Torvalds
parent 7726e9e10f
commit d2d58384fc
3 changed files with 45 additions and 1 deletions
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3
include/linux/tty.h
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@ -74,7 +74,8 @@ struct screen_info {
u16 vesapm_off; /* 0x30 */
u16 pages; /* 0x32 */
u16 vesa_attributes; /* 0x34 */
/* 0x36 -- 0x3f reserved for future expansion */
u32 capabilities; /* 0x36 */
/* 0x3a -- 0x3f reserved for future expansion */
};
extern struct screen_info screen_info;