63 lines
2.3 KiB
Groff
63 lines
2.3 KiB
Groff
.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/fbdev/fbdev.man,v 1.4 2005/02/01 02:25:07 dawes Exp $
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.\" shorthand for double quote that works everywhere.
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.ds q \N'34'
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.TH FBDEV __drivermansuffix__ __vendorversion__
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.SH NAME
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fbdev \- video driver for framebuffer device
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.SH SYNOPSIS
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.nf
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.B "Section \*qDevice\*q"
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.BI " Identifier \*q" devname \*q
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.B " Driver \*qfbdev\*q"
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.BI " BusID \*qpci:" bus : dev : func \*q
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\ \ ...
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.B EndSection
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.fi
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.SH DESCRIPTION
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.B fbdev
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is an XFree86 driver for framebuffer devices. This is a non-accelerated
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driver, the following framebuffer depths are supported: 8, 15, 16, 24.
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All visual types are supported for depth 8, and TrueColor visual is
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supported for the other depths. Multi-head configurations are supported.
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.SH SUPPORTED HARDWARE
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The
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.B fbdev
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driver supports all hardware where a framebuffer driver is available.
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fbdev uses the os-specific submodule fbdevhw(__drivermansuffix__) to talk
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to the kernel
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device driver. Currently a fbdevhw module is available for linux.
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.SH CONFIGURATION DETAILS
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Please refer to XF86Config(__filemansuffix__) for general configuration
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details. This section only covers configuration details specific to
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this driver.
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.PP
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For this driver it is not required to specify modes in the screen
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section of the config file. The
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.B fbdev
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driver can pick up the currently used video mode from the framebuffer
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driver and will use it if there are no video modes configured.
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.PP
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For PCI boards you might have to add a BusID line to the Device
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section. See above for a sample line. You can use "XFree86 -scanpci"
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to figure out the correct values.
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.PP
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The following driver
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.B Options
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are supported:
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.TP
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.BI "Option \*qfbdev\*q \*q" string \*q
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The framebuffer device to use. Default: /dev/fb0.
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.TP
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.BI "Option \*qShadowFB\*q \*q" boolean \*q
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Enable or disable use of the shadow framebuffer layer. Default: on.
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.TP
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.BI "Option \*qRotate\*q \*q" string \*q
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Enable rotation of the display. The supported values are "CW" (clockwise,
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90 degrees), "UD" (upside down, 180 degrees) and "CCW" (counter clockwise,
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270 degrees). Implies use of the shadow framebuffer layer. Default: off.
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.SH "SEE ALSO"
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XFree86(1), XF86Config(__filemansuffix__), xf86config(1), Xserver(1),
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X(__miscmansuffix__), fbdevhw(__drivermansuffix__)
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.SH AUTHORS
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Authors include: Gerd Knorr, Michel Danzer, Geert Uytterhoeven
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