Re: [Linux-usb-users] Problem, irq 23: nobody cared (try booting with the "irqpoll" option)
Alan Stern writes: > On Sat, 14 Jul 2007, Akkana Peck wrote: > > irq 9: nobody cared (try booting with the "irqpoll" option) > ... > > handlers: > > [] (ohci_irq_handler+0x0/0x920) > > [] (yenta_interrupt+0x0/0xe0) > > [] (usb_hcd_irq+0x0/0x60) > > Disabling IRQ #9 > > You must have a copy of ohci-hcd left over from somewhere. Perhaps you > need to do clean rebuild and re-install. I did some experiments. I tried a clean rebuild, but while I was grepping to make sure I had no OHCI remnants, I noticed that CONFIG_IEEE1394_OHCI1394 was still set, so I tested both with and without that. It turns out that was the problem. That "ohci_irq_handler" message apparently isn't referring to USB OHCI after all (I'm fairly sure that's never been enabled in this kernel tree -- it's been 4 years since I owned a machine that used OHCI). It was referring to the Firewire OHCI1394 controller. So this probably belongs as a bug report against 1394 and probably isn't a USB problem, at least on my machine. And it looks like Dylan, the original poster, also has Firewire. I don't use Firewire so I'm perfectly happy disabling it, and meanwhile I'll take this to the appropriate Firewire list. Thanks! ...Akkana - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
Re: [Linux-usb-users] USB device not detected
Alan, Just in case I didn't reply earlier, I finally got my hands on a laptop and tried the camera on it, and no respose. As you say, seems pretty clear that the problem lies with cable or camera, and since I substituted the cable. it seems the camera is the guilty party. I found to my surprise that flash memory card readers are very cheap, and so placed an order for one, rather than consider a new camera. Thanks for the help. Haines Brown - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
Re: [Linux-usb-users] Problem, irq 23: nobody cared (try booting with the "irqpoll" option)
On Sat, 14 Jul 2007, Akkana Peck wrote: > I just noticed one weirdness, though: it lists ohci_irq_handler as > one of the handlers. But this machine uses UCHI, not OHCI, and I > configured my kernel accordingly. But when I look at .config, I see: > # > # USB support > # > CONFIG_USB_ARCH_HAS_HCD=y > CONFIG_USB_ARCH_HAS_OHCI=y > CONFIG_USB_ARCH_HAS_EHCI=y > > and then later I see what I configured, > # > # USB Host Controller Drivers > # > # CONFIG_USB_EHCI_HCD is not set > # CONFIG_USB_ISP116X_HCD is not set > # CONFIG_USB_OHCI_HCD is not set > CONFIG_USB_UHCI_HCD=y > # CONFIG_USB_SL811_HCD is not set > > What are the "USB support" ones? I don't see them in menuconfig. They indicate that your computer can support USB. Some computers can't. For example, you could go out and buy a PCI card with an OHCI controller; therefore your computer can support OHCI even though it doesn't have OHCI at the moment. These options don't appear in menuconfig because they aren't something you can turn on and off; either your computer is capable of supporting USB or it isn't. > Could that HAS_OHCI be causing the problem? No. The ohci-hcd driver won't be built unless CONFIG_USB_OHCI_HCD is set. > Here's the dmesg output: > > irq 9: nobody cared (try booting with the "irqpoll" option) ... > handlers: > [] (ohci_irq_handler+0x0/0x920) > [] (yenta_interrupt+0x0/0xe0) > [] (usb_hcd_irq+0x0/0x60) > Disabling IRQ #9 You must have a copy of ohci-hcd left over from somewhere. Perhaps you need to do clean rebuild and re-install. Alan Stern - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
Re: [Linux-usb-users] Problem, irq 23: nobody cared (try booting with the "irqpoll" option)
Matthew Dharm writes: > Not long ago, I learned that IRQ 9 is commonly used by ACPI. [ ... ] > Booting with "acpi=off" makes them all work. I have no idea why. You may > also want to fiddle with any BIOS settings to enable/disable ACPI. Interesting! Though it wouldn't help in this case -- I already disable ACPI in my kernel, because otherwise I get kacpid lockups (kernel bug 8274). But I wonder if IRQ sharing is part of the reason some machines get a runaway kacpid and others don't? ...Akkana - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
Re: [Linux-usb-users] USB device not detected
On Sun, 15 Jul 2007, Rogier Wolff wrote: > > It's kind of involved. In brief: The computer's USB hardware detects a > > new connection and generates an interrupt. The hub driver learns that > > a new device has been connected to some port and goes through a complex > > initialization and enumeration procedure, which involves resetting the > > port, assigning the device an address, reading the device's > > descriptors, and choosing a device configuration. Once that's all > > done, the device will appear in /proc/bus/usb/devices. > > My kernel reports: > New USB device found on port ... Mine doesn't. For example, I just plugged in a USB flash storage device. The only kernel messages appearing during the initialization phases were these two: usb 6-4: new high speed USB device using ehci_hcd and address 2 usb 6-4: configuration #1 chosen from 1 choice (Note, this is without CONFIG_USB_DEBUG enabled.) The first of those doesn't get printed until after the port has been successfully reset. > If enumeration and assigning an addres fails, I get a message saying > that a few seconds later. If Haines doesn't get the "new USB device" > message, there is something wrong with the camera, cable or the port. That's what I said earlier. > Interrupts on his USB devices seem to work as other devices are > detected. The question is not whether interrupts are working; the question is whether an interrupt occurs when the camera is plugged in. If it doesn't, that's a pretty clear indication that the camera or the cable is at fault. And it indicates that the problem occurs right at the beginning of the normal device-detection pathway. This is also why I asked whether the camera works when plugged into a different computer. Alan Stern - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
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Re: [Linux-usb-users] USB device not detected
On Sat, Jul 14, 2007 at 07:50:16PM -0400, Alan Stern wrote: > On Sat, 14 Jul 2007, Haines Brown wrote: > > > By "unable to see", what I meant was that connecting and disonnecting > > my camera had no effect on kernlog or syslog (no messages there as a > > result of the actions), and the camera being on the bus is not > > reported by $ lsusb, nor do I see my camera in > > /proc/bus/usb/devices. The opposite is the case for all other USB > > devices. > > > > "Lots of steps" I suppose was the intent of my question. In searching > > for information, I've yet to see a description of the sequence of > > these steps. > > It's kind of involved. In brief: The computer's USB hardware detects a > new connection and generates an interrupt. The hub driver learns that > a new device has been connected to some port and goes through a complex > initialization and enumeration procedure, which involves resetting the > port, assigning the device an address, reading the device's > descriptors, and choosing a device configuration. Once that's all > done, the device will appear in /proc/bus/usb/devices. My kernel reports: New USB device found on port ... If enumeration and assigning an addres fails, I get a message saying that a few seconds later. If Haines doesn't get the "new USB device" message, there is something wrong with the camera, cable or the port. Interrupts on his USB devices seem to work as other devices are detected. Roger. -- ** [EMAIL PROTECTED] ** http://www.BitWizard.nl/ ** +31-15-2600998 ** **Delftechpark 26 2628 XH Delft, The Netherlands. KVK: 27239233** *-- BitWizard writes Linux device drivers for any device you may have! --* Q: It doesn't work. A: Look buddy, doesn't work is an ambiguous statement. Does it sit on the couch all day? Is it unemployed? Please be specific! Define 'it' and what it isn't doing. - Adapted from lxrbot FAQ - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
