I am running pulseview (and other sigrok software) on a raspberry Pi 3 with uptodate Raspbian.
I have built all software the same day I report this bug (6th April 2018) following Linux Build page for Debian based system.
All the builds went pretty well and I can open Pulseview, and it works with Demo device.
But after hours of searching and trying things, I cannot have Pulseview to detect my Salae clone type 8Ch logic analyser (this model : https://sigrok.org/wiki/MCU123_Saleae_Logic_clone )
When I do a
I get :
sr: fx2lafw: Failed to open potential device with VID:PID 0925:3881: LIBUSB_ERROR_ACCESS.
The following devices were found:
demo - Demo device with 12 channels: D0 D1 D2 D3 D4 D5 D6 D7 A0 A1 A2 A3
I have downloaded fx2lafw firmware from http://sigrok.org/download/binary/sigrok-firmware-fx2lafw/
and I copied the content to /usr/share/sigrok-firmware but this didn't solve the bug.
Also, here is lsusb result for the Logic Analyzer :
Bus 001 Device 006: ID 0925:3881 Lakeview Research Saleae Logic
Having not found any solution in google, i report a possible bug.
Do you have a solution ?
forgot to mention that I changed the USB cable, but the bug remained and lsusb and other messages remained the same.
You probably failed to install the udev rules to the correct location.
To check if it's udev, you can try running PV or sigrok-cli as root. If the device is recognized there, you need to install the udev rules (see https://sigrok.org/gitweb/?p=libsigrok.git;a=tree;f=contrib) and force udev to reload the rules (a reboot works, too).
Nicolas, do you have an update for us?
Yes, sorry I was away from home for a while.
The installation of udev rules (which I don't very much understand !) solved the problem.
Great, many thanks for the answers.
Hello I'm trying to do the same thing as Nicolas, to use Pulseview on Rpi3 and I think I encounter the same problem. I'm working on this from several days, I've tried different things like: updating fx2lafw again and again in different ways, Trying even to build the entire thing on VMBox with Raspbian, I also found a script to compile and install PulseView on Ubuntu Linux
(https://gist.github.com/onetransistor/3e12e2e3a900b1110c111a0efda6ee4a) but unfortunately because I have only 1 Gb Ram I cannot pass the Pluseview build step. I found some Snap thing build related to the sigrok and use that build in different ways and somehow I manage to make the Pulseview app to work but
in the end I get the same error :
fx2lafw: Failed to open potential device with VID:PID 0925:3881: LIBUSB_ERROR_ACCESS.
If you have any advice on how to proceed or have any idea I will be very grateful.