71 lines
2.3 KiB
Plaintext
71 lines
2.3 KiB
Plaintext
-------------------------------------------------------------------------------
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Recent versions of 3.0-current have the bktr driver built in.
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Older versions of 3.0 and all versions of 2.2 need to have the driver
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files installed by hand. If you find you have no /sys/pci/brooktree848.c
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file in your source tree, you will need to do the following:
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cp ioctl_bt848.h /sys/i386/include/
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cp brktree_reg.h brooktree848.c /sys/pci/
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And in /sys/conf/files add:
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pci/brooktree848.c optional bktr device-driver
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-------------------------------------------------------------------------------
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In all cases you will need to add the driver to your kernel:
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In your kernel configuration file:
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controller pci0 #if you already have this line don't add it.
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device bktr0
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There is no need to specify DMA channels nor interrupts for this
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driver.
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-------------------------------------------------------------------------------
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Finally you need to create nodes for the driver:
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Create a video device:
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mknod /dev/bktr0 c 92 0
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Create a tuner device:
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mknod /dev/tuner0 c 92 16
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Or, if your /dev/MAKEDEV script is up to date (and you can copy the latest
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from /usr/src/etc/etc.i386/MAKEDEV) simply type: cd /dev && ./MAKEDEV bktr0
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-------------------------------------------------------------------------------
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The code attempts to auto-probe code to detect card/tuner types.
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The detected card is printed in the dmesg as the driver is loaded. If
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this fails to detect the proper card you can override it in brooktree848.c:
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#define OVERRIDE_CARD <card type>
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where <card type> is one of:
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CARD_UNKNOWN
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CARD_MIRO
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CARD_HAUPPAUGE
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CARD_STB
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CARD_INTEL
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-------------------------------------------------------------------------------
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This model now separates the "tuner control" items into a minor device:
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minor device layout: xxxxxxxx xxxT UUUU
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UUUU: the card (ie UNIT) identifier, 0 thru 15
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T == 0: video device
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T == 1: tuner device
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Access your tuner ioctl thru your tuner device handle and anything
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which controls the video capture process thru the video device handle.
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Certain ioctl()s such as video source are available thru both devices.
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-------------------------------------------------------------------------------
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The bt848 driver consists of:
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src/sys/i386/include/ioctl_bt848.h
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src/sys/pci/brktree_reg.h
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src/sys/pci/brooktree848.c
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