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udlfb: Enable fbcon access to framebuffer by default

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Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This commit is contained in:
Bernie Thompson
2011-08-21 13:35:39 -07:00
committed by Florian Tobias Schandinat
parent 9f811b72c6
commit 4aa7faffe4
2 changed files with 8 additions and 6 deletions
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Documentation/fb/udlfb.txt
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@@ -107,16 +107,18 @@ fb_defio Make use of the fb_defio (CONFIG_FB_DEFERRED_IO) kernel
Disable when running with X server that supports reporting
changed regions via ioctl, as this method is simpler,
more stable, and higher performance.
default: fb_defio=1
console Allow fbcon to attach to udlfb provided framebuffers. This
is disabled by default because fbcon will aggressively consume
the first framebuffer it finds, which isn't usually what the
user wants in the case of USB displays.
console Allow fbcon to attach to udlfb provided framebuffers.
Can be disabled if fbcon and other clients
(e.g. X with --shared-vt) are in conflict.
default: console=1
shadow Allocate a 2nd framebuffer to shadow what's currently across
the USB bus in device memory. If any pixels are unchanged,
do not transmit. Spends host memory to save USB transfers.
Enabled by default. Only disable on very low memory systems.
default: shadow=1
Sysfs Attributes
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