Re: Fw: USB ehci problems with USRP, -71 EPROTO
George Nychis <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Alan Stern wrote: > On Thu, 15 Feb 2007, George Nychis wrote: > >> Oliver Neukum wrote: >>> Which kernel versions? >>> Which version of libusb, if that is used? >> Argh, sorry: >> linux-2.6.19 >> dev-libs/libusb-0.1.12 >> >> >>> If you don't do that, does it really work? >> Not any more, I removed user privileges and it still doesn't work, >> however it worked prior to these changes, maybe just by chance? >> >> >>> How are these machines different? >> They are *exactly* the same in hardware. Also, we have two of these >> USRP devices, neither work on my machine, both work on the other machine. >> >>> Also lsusb for your device and full dmesg please. >> http://www.andrew.cmu.edu/user/gnychis/device >> http://www.andrew.cmu.edu/user/gnychis/dmesg > > From the dmesg log, it appears that the Python program is sending a > message to the device which causes it to crash. Are you certain that the > same programs are running on both machines and are sending the same > messages? they use the exact same version of python, the exact same version of gnu radio, and the exact same version of of the python script... > > Suggestion: Use usbmon to see the data being sent (instructions in the > kernel source file Documentation/usb/usbmon.txt). but i'll try this. > > Alan Stern > > - George ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel