From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751494AbXBOBVE (ORCPT ); Wed, 14 Feb 2007 20:21:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751503AbXBOBVE (ORCPT ); Wed, 14 Feb 2007 20:21:04 -0500 Received: from smtp.andrew.cmu.edu ([128.2.10.82]:51975 "EHLO smtp.andrew.cmu.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751494AbXBOBVD (ORCPT ); Wed, 14 Feb 2007 20:21:03 -0500 X-Greylist: delayed 1165 seconds by postgrey-1.27 at vger.kernel.org; Wed, 14 Feb 2007 20:21:03 EST Message-ID: <45D3B0EC.8030804@cmu.edu> Date: Wed, 14 Feb 2007 20:01:32 -0500 From: George Nychis User-Agent: Thunderbird 2.0b1 (X11/20070206) MIME-Version: 1.0 To: Linux Kernel Mailing List CC: discuss-gnuradio@gnu.org Subject: USB ehci problems with USRP, -71 EPROTO Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hey all, I am having troubles connecting and interfacing to a device called a USRP via USB which is used with GNU Radio. At one time, the setup worked perfectly fine with no errors. Then i tried to give a regular user permission to the USB device and everything went downhill. Now, whenever I plugin the device sometimes I sometimes get the error: usb 1-7: device descriptor read/all, error -71 Whenever I don't get the error, I try to proceed normally to uploading a new image to the USRP and I get the following error from gnuradio: write_internal_ram failed: error sending control message: Protocol error This generates the following dmesg errors: usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd python rqt 64 rq 160 len 3 ret -71 usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd python rqt 64 rq 160 len 5 ret -71 usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd python rqt 64 rq 160 len 8 ret -71 usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd python rqt 64 rq 160 len 3 ret -71 Another set of errors produced by gnuradio are these: usrp_open_interface:usb_set_alt_interface: failed could not set alt intf 0/0: Protocol error open_nth_cmd_interface: open_cmd_interface failed ----- I was able to plug the USRP into another machine with GNU Radio and successfully flash new firmware to it 100% successfully several times. I cannot get a single firmware on using my machine and the USRP. Heres what else I've tried: - un-installing and re-installing GNU Radio - switching USB ports on the machine - switching USB cables - rebuilding the kernel - installing a newer version of udev - using a different USRP on my machine (doesn't work) I'm not sure what else to try... heres what I did between when it worked and broke, trying to set the USB permissions properly: ----------------- I tried udev first, and created /etc/udev/rules.d/60-usrp.rules: # USRP without loaded firmware (FX2) BUS=="usb", SYSFS{idVendor}=="fffe", SYSFS{idProduct}=="0002", SYSFS{bcdDevice}=="0002", GROUP="usrp", RUN+="/usr/local/bin/usrper load_standard_bits" BUS=="usb", SYSFS{idVendor}=="fffe", SYSFS{idProduct}=="0002", SYSFS{bcdDevice}=="0004", GROUP="usrp", RUN+="/usr/local/bin/usrper load_standard_bits" # USRP with loaded firmware BUS=="usb", SYSFS{idVendor}=="fffe", SYSFS{idProduct}=="0002", SYSFS{bcdDevice}=="0102", GROUP="usrp" BUS=="usb", SYSFS{idVendor}=="fffe", SYSFS{idProduct}=="0002", SYSFS{bcdDevice}=="0104", GROUP="usrp" ----------------- So the other method was with hotplug, and i made /etc/hotplug/usb/usrp: #!/bin/sh chown root:usb "$DEVICE" chmod ug+rw "$DEVICE" and usrp.usermap: usrp 0x0003 0xfffe 0x0002 0 0 0 0 0 0 0 0 ----------------- I would greatly appreciate any help and suggestions. Thanks! George