Messages in this thread Patch in this message | | | Date | Tue, 24 Jan 2006 18:11:41 +0100 | From | Pavel Machek <> | Subject | [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 juts before suspend (according to the whitelist). This implements sysctl to allow setting suspend video options without reboot.
Signed-off-by: Pavel Machek <pavel@suse.cz>
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 7f47212..164e096 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -146,6 +146,7 @@ enum KERN_RANDOMIZE=68, /* int: randomize virtual address space */ KERN_SETUID_DUMPABLE=69, /* int: behaviour of dumps for setuid core */ KERN_SPIN_RETRY=70, /* int: number of spinlock retries */ + KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */ }; diff --git a/kernel/sysctl.c b/kernel/sysctl.c index f5d69b6..692b56c 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -44,14 +44,12 @@ #include <linux/limits.h> #include <linux/dcache.h> #include <linux/syscalls.h> +#include <linux/nfs_fs.h> +#include <linux/acpi.h> #include <asm/uaccess.h> #include <asm/processor.h> -#ifdef CONFIG_ROOT_NFS -#include <linux/nfs_fs.h> -#endif - #if defined(CONFIG_SYSCTL) /* External variables not in a header file. */ @@ -658,6 +656,16 @@ static ctl_table kern_table[] = { .proc_handler = &proc_dointvec, }, #endif +#ifdef CONFIG_ACPI_SLEEP + { + .ctl_name = KERN_ACPI_VIDEO_FLAGS, + .procname = "acpi_video_flags", + .data = &acpi_video_flags, + .maxlen = sizeof (unsigned long), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, +#endif { .ctl_name = 0 } }; -- Thanks, Sharp! - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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