On Fri, 9 Sep 2005, Stefan Friedel wrote: > Hi, > since some versions of the 2.6.x kernels I have a problem w/ an usb stick. > After googling around for "device not accepting address 4, error -71"-errors, > disabling acpi, using old_scheme_first=0/1 etc. pp. and trying different > 2.6.11.x-2.6.12.x kernels I installed yesterday 2.6.13 w/ > CONFIG_USB_STORAGE_DEBUG=y and connected the stick to a usb port: > > ########################################## > usb 2-1: new full speed USB device using uhci_hcd and address 3 > usb 2-1: device descriptor read/64, error -71 > usb 2-1: device descriptor read/64, error -71
... > ... and usb system seems to be (partially) blocked: cat /proc/bus/usb/devices > is not returning anymore... > Any hints? Sensitive to EHCI? The blockage you experienced is caused by bugs in the driver core. I believe that the current -mm kernel contains fixes. The problem with your storage device has nothing to do with EHCI. It is caused by bad hardware, either in the computer's USB controller, in the stick itself, or in the USB connections. In your Suject you said "not working since 2.6.10". Does that mean the same stick did work on the same computer with the 2.6.10 kernel? Does it still work with 2.6.10? Alan Stern ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
