Date: Sun, 20 Jul 2003 18:51:44 +0900 From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp> To: "Petr Holub" <hopet@ics.muni.cz> Cc: firewire@freebsd.org Subject: Re: firewire problem on 5.1-RELEASE Message-ID: <ybsadb9plu7.wl@ett.sat.t.u-tokyo.ac.jp> In-Reply-To: <000001c34e9b$e0d99880$2be86cc2@kloboucek> References: <ybsbrvqpnku.wl@ett.sat.t.u-tokyo.ac.jp> <000001c34e9b$e0d99880$2be86cc2@kloboucek>
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At Sun, 20 Jul 2003 10:49:49 +0200, Petr Holub wrote: > > Hi Hidetoshi, > > > Those may indicate some hardware problem. > > 5.1 does more strict check on sid buffer. > > the machine is the same and it used to work on 5.0. When I say > "work" I mean I've been able to read from the camera without any > problem. > > If it helps dmesg output is below. > > > > fwohci0: IR DMA overrun (0x40008011) > > > fwohci0: IR DMA overrun (0x40008011) > > > fwohci0: IR DMA overrun (0x40008011) > > > fwohci0: IR DMA overrun (0x40008011) > > > > How do you read from camera and where do you write the data? > > If you cannot read/write fast enough, the buffer overrun > > could ocurr. > > The code for reading is based on your dv/dvrecv/dvsend that you gave > me some time ago (approx. March this year) when I was wondering > why DVTS doesn't work. This code used to work on 5.0 so that's > why I'm a bit confused why it stopped working. I have changed API since 5.0. Use fwcontrol instead of dv*. /\ Hidetoshi Shimokawa \/ simokawa@sat.t.u-tokyo.ac.jp PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html
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