OK, so AMP (the people that make my sbc) contacted me and were very helpful. Future reference for anybody dealiong with pc 104. The module position jumpers tell each module which "pci slot" it is in (and don't have anything to do with the actual physical stack position). According to AMP, on the Tiny786lp/886lp, the freezing problem is a result of using a module (especially a bt878) in position 0. I had tried the module in other positions, but not with every possible combination of interrupt settings. It turns out that pci interrupts get remapped in other module positions. So inta, which any single irq using card uses, gets remapped for each modules position: pos 0 -> irqa pos 1 -> irqb pos 2 -> irqc pos 3 -> irqd or at least that's what amp told me. What actually ended up working for me was module position 2 with irqb (possibly an error in labelling on the sensoray? or somebody counting from 1 instead of 0?). For anybody else that has the sensoray card, this corresponds to jumpers on jp3-A and jp6. Anyways, thanks to Clay, AMP, and Gerd. The video is great now! Eagle On Tue, 30 Apr 2002, Clay Kunz wrote: > I'm afraid I'm not going to be much help. I have JP5 jumped, and that's > it. I have no idea what jp2 does either. It sounds like you might have > another board in there somewhere that's not being nice about sharing > interrupts. > > I have neither jp3 a nor b jumped. I actually didn't take the time to > learn much about module slots, so I don't know what the 'correct' thing > to do is. Do you have other 104+/pci cards installed? My stack seems to > work, and looks like this: > > -- 104 serial board > -- 104 scsi board > -- 104 pcmcia board > -- cpu -- > -- 104+ sensoray 311 -- > -- 104+ firewire card -- > > maybe try pulling the jumpers off jp3 a & b? Unless you think that's a > bad idea - I don't want to advise you to fry your hardware or anything... > > Clay > > Eagle Jones wrote: > > > Funny you should mention that. I am in fact playing the pc104 game, with > > the sensoray 311. I actually just noticed the comment in bttv-cards.c > > and was about to email you for help! :) > > > > Anyways, I had fiddled with different jumper settings on jp5-8, and from > > what I knew of pci interrupts, jp5 should be the correct setting. Except > > for one little thing - with jp5 on, the kernel hangs right after > > "i2c-core.o: adapter bt848 #0 registered as adapter 0." > > > > So yes, jp5 should resolve my irq timeout problem, but you don't happen > > to have any experience with it freezing the kernel on driver load do > > you? I have jp3 a and b on, so it's set to module slot 0. i have no idea > > what the lone jumper next to the isa connector, labelled jp2 does (it's > > open), do you? > > > > Eagle > > > > On Tue, 2002-04-30 at 13:27, Clay Kunz wrote: > > > >>Here's a long shot. I don't know what kind of card you're using, but on > >>mine (a PC/104+ card made by Sensoray), you actually have to jumper a > >>couple of pins to enable interrupt generation on the card (which was > >>documented in the manual, so it's not totally obscure). Perhaps your > >>card has a similar jumper. But probably not. > >> > >>Clay > >> > >> > > > > > _______________________________________________ > Video4linux-list mailing list > Video4linux-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/video4linux-list >
