Hi there, On Sat, 3 Jan 2004, John Goerzen wrote:
> >> hub 2-0:1.0: new USB device on port 2, assigned address 10 > >> usb 2-2: control timeout on ep0in > >> usb 2-2: palm_os_4_probe - error -110 getting connection info > > > > Might it be an interrupt problem? > > I had at first discarded that possibility, because on this machine, > things are all configured automatically. That's bound to work then. :) > However, on checking /proc/interrupts, I do see this: > > 11: 61549 XT-PIC ehci_hcd, uhci_hcd, uhci_hcd, uhci_hcd, Intel > 82801DB-ICH4, ath0 Yikes! That's a busy interrupt line. > ath0 is my wireless Ethernet card that's built-in (mini-PCI, not > PCMCIA). So it would appear that USB and wireless Ethernet are sharing > an interrupt. > > 1) can they do that? I'm assuming that the answer is no. I have no idea. But in general I think sharing interrupts is a Bad Thing unless you know it's OK, for example low-speed devices like printers can be fine and even disc drives if they're mostly doing DMA. > 2) how to fix it, and why was 2.4.x OK? It might be worth putting your 2.4.x system back together to see if you can spot any obvious differences. As a general rule I always like to be able to go back to the old way if the new way turns out to be not such an improvement. That's why I went back to 2.4.23 after a very brief affair with 2.6.0 (but that's another story:). > I have turned on CONFIG_PNPBIOS in 2.6.x; do you think that is a > problem? Don't know what that will do. Do you have any PNP devices? > Is there any other way to prevent this interrupt sharing? You can usually force an interrupt to be used with a parameter at boot time (kernel boot parameters) or at module load time (parameters in modules.conf or whatever it's called in your incarnation of the kernel). You might be able to do something about it in the BIOS setup routine (for the archives: on PCs, generally accessible at power-on by pressing DEL). 73, Ged. ------------------------------------------------------- This SF.net email is sponsored by: IBM Linux Tutorials. Become an expert in LINUX or just sharpen your skills. Sign up for IBM's Free Linux Tutorials. Learn everything from the bash shell to sys admin. Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
