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

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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
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