linux-kernel - Re: [PATCH v3 2/2] fbcon: expose cursor blink interval via sysfs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150225094946.GA24627@amd>
Date:	Wed, 25 Feb 2015 10:49:46 +0100
From:	Pavel Machek <pavel@....cz>
To:	Scot Doyle <lkml14@...tdoyle.com>
Cc:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/2] fbcon: expose cursor blink interval via sysfs

On Mon 2015-01-26 20:41:53, Scot Doyle wrote:
> The fbcon cursor, when set to blink, is hardcoded to toggle display state
> five times per second. Expose this setting via
> /sys/class/graphics/fbcon/cursor_blink_ms
> 
> Values written to the interface set the approximate time interval in
> milliseconds between cursor toggles, from 1 to 32767. Since the interval
> is stored internally as a number of jiffies, the millisecond value read
> from the interface may not exactly match the entered value.
> 
> An outstanding blink timer is reset after a new value is entered.
> 
> If the cursor blink is disabled, either via the 'cursor_blink' boolean
> setting or some other mechanism, the 'cursor_blink_ms' setting may still
> be modified. The new value will be used if the blink is reactivated.
> 
> Signed-off-by: Scot Doyle <lkml14@...tdoyle.com>

Normally, this would be set by ansi escape sequences, no? We can hide
cursor using them, set its appearance.. makes sense to change timing
value there, too....
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/