I think the -4 error is a device not found error, so it looks like the problem is that the firmware isn't starting up properly after it is uploaded to the device.
If you have time, you could try doing some packet capture with usbmon in wireshark. [email protected] wrote: >> Hi Martin, >> >> Some other questions for you - can I just check you're not running >> sigrok as root? Have you installed the udev rules file as described >> here: http://sigrok.org/wiki/Fx2lafw#Install_udev_rules_file ? >> >> Joel > >Hi Joel, > >I was indeed running as root. I installed udev to make the device owned by >plugdev. However I still get the -4 error when running as myself (without >the hub). Why would running as root be problematic? > >$ id >uid=1000(martin) gid=1000(martin) >groups=1000(martin),4(adm),20(dialout),24(cdrom),46(plugdev),112(lpadmin),121(admin),122(sambashare),125(vboxusers) >$ LIBUSB_DEBUG=3 sigrok-cli -d 0 --time 2s -l 5 > >... snip ... > >sr: initializing chronovu-la8 driver >sr: initializing fx2lafw driver >sr: ezusb: uploading firmware to device on 1.37 >sr: ezusb: setting CPU reset mode on... >sr: ezusb: Uploading firmware at >/usr/local/share/libsigrok/firmware/fx2lafw-saleae-logic.fw >sr: ezusb: Uploaded 4096 bytes >sr: ezusb: Uploaded 4096 bytes >sr: ezusb: Uploaded 4096 bytes >sr: ezusb: Uploaded 4024 bytes >sr: ezusb: Firmware upload done >sr: ezusb: setting CPU reset mode off... >sr: dev: sr_dev_has_hwcap: requesting hwcap 2 >sr: dev: sr_dev_has_hwcap: found hwcap 2 >sr: dev: sr_dev_has_hwcap: requesting hwcap 2 >sr: dev: sr_dev_has_hwcap: hwcap 2 not found >sr: dev: sr_dev_has_hwcap: requesting hwcap 2 >sr: dev: sr_dev_has_hwcap: found hwcap 2 >sr: dev: sr_dev_has_hwcap: requesting hwcap 2 >sr: dev: sr_dev_has_hwcap: hwcap 2 not found >sr: fx2lafw: Unable to get version info: -4. >sr: fx2lafw: Failed to retrieve firmware version information. >sr: fx2lafw: Unable to open device. >sr: session: sr_session_dev_add: dev_open failed (-1) >Failed to use device. >sr: fx2lafw: Closing device 0 on 1.37 interface 0. > >Could it be a race condition somehow? > >-- Martin > > > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ sigrok-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sigrok-devel
