Date: Wed, 21 Aug 2002 09:59:43 +0200
From: M G Berberich <berberic@fmi.uni-passau.de>
To: linux-kernel@vger.kernel.org
Subject: bttv-driver: help required with new card
Message-ID: <20020821075942.GF11372@finarfin.forwiss.uni-passau.de>
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Hello,

I have a framegrabber to work with linux (2.4.18). It's a BT878
device and I have a lot of questions :(

a) It does not use the muxsel-bits in BT848_IFORM but some bits in
   BT848_GPIO_DATA to select video-input---so seems to be a quite
   unusual device.

   Should I make switch(btv->type) statments in bt848_muxsel?

b) several registers have to be initialised to other values then
   usual, to make the card work.

   At the moment I'm doing this in bt848_muxsel, but I would like to
   move to a place where it is not executed every time I switch input
   Is init_bt848 the right place?

   (The framegrabber should generate sync-signals and provide them to
   the cameras allowing to switch between cameras in 40ms, so
   initializing the chips every time would not work)

c) It does not identify with PCI_SUBSYSTEM_ID/PCI_SUBSYSTEM_VENDOR_ID
   (gives 0xffff). Any other way to autodetect it?

d) Who is the bttv-maintainer?!

	MfG
	bmg

--=20
"Des is v=F6llig wurscht, was heut beschlos- | M G Berberich
 sen wird: I bin sowieso dagegn!"          | berberic@fmi.uni-passau.de
(SPD-Stadtrat Kurt Schindler; Regensburg)  | www.fmi.uni-passau.de/~berberic

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