[CRITICAL::urh_cli.py::on_fatal_device_error_occurred] failed to start tx mode
[ERROR::Device.py::log_retcode] HackRF-SETUP
[ERROR::Device.py::log_retcode] HackRF-SETUP: HACKRF_ERROR_NOT_FOUND (-5)
[ERROR::Device.py::log_retcode] HackRF-SET_SAMPLE_RATE to 2M: HACKRF_ERROR_LIBUSB (-1000)

Please avoid USB hubs and USB extension cables, but connect your SDR directly to your computer. At least USB 2 hubs are known to be too slow to sustain the bit-stream.

Please make sure that your computer is connected to the power network (i. e. don't run your notebook on battery only). A throttled CPU might be too slow to generate the bit-stream for the SDR.

If you run Linux inside of a Virtual Machine on a slow computer, you might experience the same performance problems. VirtualBox only supports USB 1.x in the default installation.

Please see https://www.eltima.com/article/virtualbox-usb-passthrough/ on how to install and enable USB Passthrough support for VirtualBox.

Access to HackRF only works as root

Access to the HackRF hardware only works as root. remoshock crashes with either a segmentation fault or the following error message:

[ERROR::Device.py::log_retcode] HackRF-SETUP: HACKRF_ERROR_NOT_FOUND (-5)

The hackrf_info fails with the following error as a normal user:

hackrf_open() failed: Access denied (insufficient permissions) (-1000)

In order to access the hardware as normal user, a udev rule is needed. Please create the file /etc/udev/rules.d/53-hackrf.rules with the content from https://raw.githubusercontent.com/mossmann/hackrf/master/host/libhackrf/53-hackrf.rules

	# grant access to user in group plugdev
	ATTR{idVendor}=="1d50", ATTR{idProduct}=="604b", SYMLINK+="hackrf-jawbreaker-%k", MODE="660", GROUP="plugdev"  
	ATTR{idVendor}=="1d50", ATTR{idProduct}=="6089", SYMLINK+="hackrf-one-%k", MODE="660", GROUP="plugdev"
	ATTR{idVendor}=="1d50", ATTR{idProduct}=="cc15", SYMLINK+="rad1o-%k", MODE="660", GROUP="plugdev"
	ATTR{idVendor}=="1fc9", ATTR{idProduct}=="000c", SYMLINK+="nxp-dfu-%k", MODE="660", GROUP="plugdev"

Furthermore please make sure that the user in the group plugdev.

HackRF stops working after inactivity

The HackRF device seems to have problems with USB suspension. Please add the following lines to /etc/udev/rules.d/53-hackrf.rules

	# disable USB autosuspend for HackRF
	ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="1d50", ATTR{idProduct}=="604b", ATTR{power/autosuspend}="-1"
	ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="1d50", ATTR{idProduct}=="6089", ATTR{power/autosuspend}="-1"
	ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="1d50", ATTR{idProduct}=="cc15", ATTR{power/autosuspend}="-1"
	ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="1fc9", ATTR{idProduct}=="000c", ATTR{power/autosuspend}="-1"

It is not working, why?

Please add the parameter --verbose. It will enable debug logging.

I am in a VirtualBox VM and lsusb does not find my SDR transmitter

Please see https://www.eltima.com/article/virtualbox-usb-passthrough/ on how to install and enable USB Passthrough support for VirtualBox.

In short:

apt install virtualbox-ext-pack
add yourself to the vboxuser group
on the USB settings pages of the virutal machine select USB 3.0 controller and add a filter to allow access to the SDR device

Which setup is used for testing?

I use Ubuntu 2024.04 with a HackRF transmitter, a PAC ACX collar and a brandless Wodondog collar.