In 2.6.4,on a machine with a VIA chipset (uhci) and an additional ehci usb2/ieee1394 card, I get an endless stream of:
hub 1-0:1.0: over-current change on port %d (where %d is 3, 4, and 5). I also got this message in 2.6.1, though I don't think it was quite so insistent, so this doesn't seem to have been affected by the over-current patches mentioned in the 2.6.4 Changelog. USB seems to work fine, but the message clutters the logs and makes it impossible to look for other messages. This is on a gigabyte 6va7 motherboard, which has a VIA chipset with onboard USB (UHCI). In addition, I have a USB2/ieee1394 PCI card, a D-Link DFB-A5, about which lspci says: 02:00.0 FireWire (IEEE 1394): Lucent Microelectronics FW323 (rev 04) 02:01.0 USB Controller: NEC Corporation USB (rev 41) 02:01.1 USB Controller: NEC Corporation USB (rev 41) 02:01.2 USB Controller: NEC Corporation USB 2.0 (rev 02) dmesg says ehci_hcd 0000:02:01.2: EHCI Host Controller ehci_hcd 0000:02:01.2: irq 18, pci mem e8806f00 ehci_hcd 0000:02:01.2: new USB bus registered, assigned bus number 1 ehci_hcd 0000:02:01.2: USB 2.0 enabled, EHCI 0.95, driver 2003-Dec-29 This looks a bit like the thread in http://www.mail-archive.com/[EMAIL PROTECTED]/msg20713.html and I get the impression that the problem is related to "extra" usb ports that the kernel thinks are on the ehci card (it only has two usb ports, though it also has three ieee1394 ports). Though in my case it doesn't seem to matter whether I have anything plugged in to the USB system; I get that message upon boot, with no devices active (except an unpowered usb hub which is connected to one of the onboard UHCI ports, and unplugging that doesn't make the messages stop). I've temporarily disabled the whole if (portchange & USB_PORT_STAT_C_OVERCURRENT) { clause on line 1091 of drivers/usb/core/hub.c, so I can see other messages, and everything still seems to work, but I'd like to come up with a better solution, or at least find out if this is a known problem or if I should report it in kernel bugzilla or on the linux-usb list or somewhere like that. I'd be happy to try patches or printks, or provide more details. Thanks for any help! ...Akkana ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
