Date: Sat, 18 Apr 1998 20:03:08 -0500 (CDT) From: Alex Nash <nash@mcs.net> To: rhh@ct.picker.com Cc: freebsd-multimedia@FreeBSD.ORG Subject: Re: Bt848: no IRQ Message-ID: <199804190103.UAA00566@nash.pr.mcs.net> In-Reply-To: <19980418201915.A4856@ct.picker.com>
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On 18 Apr, Randall Hopper wrote: > I just pulled the latest driver source from pub/FreeBSD/FreeBSD-current/...: > > -rw-r--r-- 1 root ftp-Free 17180 Apr 5 15:21 brktree_reg.h > -rw-r--r-- 1 root ftp-Free 127734 Apr 18 03:18 brooktree848.c > -rw-r--r-- 1 root ftp-Free 7345 Feb 26 03:14 ioctl_bt848.h > > and gave it a whirl. Signals work fine here (i.e. fxtv -disableDirectV) > with that version. I tried sources from January 1, 1998 and October 7th, 1997 -- both acted the same as the latest -current sources: no video, no irq 12 visible in vmstat -i. > Shot in the dark. Verify that no device on your ISA bus is using the IRQ > being assigned to your Hauppauge card. Other PCI devices sharing the IRQ > should be OK though. For example, in my system, my SCSI ctlr and Hauppauge > share an IRQ: > > ncr0: <ncr 53c810 fast10 scsi> rev 0x02 int a irq 9 on pci0.10.0 > bktr0: <BrookTree 848> rev 0x11 int a irq 9 on pci0.11.0 Nothing else is using IRQ 12, and the BIOS is configured to assign IRQ 12 to a PCI device. But let's suppose there was a hardware conflict (i.e. something else is using 12, but I don't have my kernel configured to use such a device). Wouldn't the fact that the device is identified as being on irq 12 mean that vmstat -i would report the presence of irq 12? You've given me another idea though -- I'll juggle the PCI interrupts so that the BIOS assigns a different IRQ to the BT848. Maybe it'll start working if it uses another IRQ line. I have forgotten to mention one other possibly critical aspect of my kernel: SMP. I'll give a UP kernel a try to see if that makes a difference. If you come up with any more ideas, no matter how far out, I'm all ears! Thanks. Alex To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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