Hi Alan, >> I've been trying to merge an already existing driver for Terratec >> Cinergy >> T2 digi-tv into newer DVB-USB "framework" (ie. get the cinergy driver to >> be compliant with the rest of the usb digi-tuners). >> >> However, I seem to have a problem with this modified driver as the >> device >> gets disconnected from the usb-bus sooner or later (after 10-48h of >> operation). Until the disconnection the driver & device seem to be >> working >> just fine. In order to figure out what is the actual problem in >> communication I retrieved the following usbmon debug log, but I have >> problems in understanding it. Anybody care to help a little bit ? > > You won't be able to figure it out because it isn't a problem in > communication; the problem is that the device really is disconnecting. > This could be caused by a flaky USB cable connection or an inadequate > USB power supply on the motherboard.
Thank you for your help, Alan. I have already started to run the driver stability test on another host with completely different hardware and even though the test has been running without problems for 2 1/2 days now, I quess I'll have to wait till the end of the week until I'm confident that the problem really was related to the previous machines hardware (Amd Athlon XP/Asus A7V880/VIA KT880-chipset/Nexus 500W power supply). As the Terratec USB-tuner doesn't have its own power cord, its totally dependent on USB-bus supplying the power and thefore your guess about inadequate USB power support might actually explain the unexpected device disconnections. Regards, Tomi Orava -- [EMAIL PROTECTED] ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
