On 12/19/2017 06:44 PM, Marcus D. Leech via USRP-users wrote: > On 12/19/2017 05:09 PM, Michael Don via USRP-users wrote: >> >> I've build and installed UHD 3.10.1.1 on a Tegra TX2 (ARM64 >> platform). The USB 3.0 is working, but I'm getting errors with the >> USB 2.0 on a USRP B200.
I know UHD works on several aarch64 platforms. I do carry a patch in meta-sdr that enables neon acceleration for the uhd type convertors. Philip >> >> uhd_find_devices works, but uhd_usrp_probe, and the uhd application >> examples give the error below. Note that I've tried running with >> sudo, and have followed the instructions "Setup Udev for USB" about >> the uhd-usrp.rules file. Any advice? >> >> Thanks, -Mike >> >> >> linux; GNU C++ version 5.4.0 20160609; Boost_105800; >> UHD_003.010.001.001-0-unknown >> >> -- Detected Device: B200 >> -- Operating over USB 2. >> -- Initialize CODEC control... >> >> UHD Error: >> An unexpected exception was caught in a task loop. >> The task loop will now exit, things may not work. >> EnvironmentError: IOError: usb rx8 transfer status: >> LIBUSB_TRANSFER_ERROR >> -- Detected bad USB state; resetting. >> >> UHD Error: >> USB open failed: insufficient permissions. >> See the application notes for your device. >> Error: AssertionError: libusb_open(_dev->get(), &_handle) == 0 >> in >> libusb_device_handle_impl::libusb_device_handle_impl(uhd::transport::libusb::device::sptr) >> >> at >> /home/nvidia/Documents/USB3/uhd-release_003_010_001_001/host/lib/transport/libusb1_base.cpp:261 >> >> >> >> > > Did you: > > sudo udevadm control --reload-rules > > After installing the usrp rules file? > > Did you unplug/replug, after updating the rules? The rules are only > *triggered* when a USB device event happens, so if it's still plugged in > when you change > the rules, nothing will happen until you re-plug. > > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
