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[PATCH] suspend-to-ram: allow video options to be set at runtime

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Currently, acpi video options can only be set on kernel command line.  That's
little inflexible; I'd like userland s2ram application that just works, and
modifying kernel command line according to whitelist is not fun.  It is better
to just allow s2ram application to set video options just before suspend
(according to the whitelist).

This implements sysctl to allow setting suspend video options without reboot.

(akpm: Documentation updates for this new sysctl are pending..)

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: "Brown, Len" <len.brown@intel.com>
Cc: "Antonino A. 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:
Pavel Machek 2006-02-20 18:27:58 -08:00 • committed by Linus Torvalds
parent 6303dbf570
commit c255d844dd
4 changed files with 25 additions and 5 deletions
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3
include/linux/acpi.h
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@ -427,7 +427,8 @@ extern int acpi_mp_config;
extern struct acpi_table_mcfg_config *pci_mmcfg_config;
extern int pci_mmcfg_config_num;
extern int sbf_port ;
extern int sbf_port;
extern unsigned long acpi_video_flags;
#else /* !CONFIG_ACPI */