libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED

[Alen59]

when i try to run debugger i get this error "libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED", any ideas?

$ bin/openocd -s share/openocd/scripts -f interface/ftdi/esp32_devkitj_v1.cfg -f board/esp32-wrover.cfg
Open On-Chip Debugger 0.10.0-dev (2018-04-18-12:04)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
none separate
adapter speed: 20000 kHz
esp32 interrupt mask on
force hard breakpoints
Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED
Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED
Info : ftdi: if you experience problems at higher adapter clocks, try the command "ftdi_tdo_sample_edge falling"
Info : clock speed 20000 kHz
Info : JTAG tap: esp32.cpu0 tap/device found: 0x120034e5 (mfg: 0x272 (Tensilica), part: 0x2003, ver: 0x1)
Info : JTAG tap: esp32.cpu1 tap/device found: 0x120034e5 (mfg: 0x272 (Tensilica), part: 0x2003, ver: 0x1)
cpu0: Current bits set: BreakIn BreakOut RunStallIn
cpu1: Current bits set: BreakIn BreakOut RunStallIn

[kolban]

On what operating system are you running openocd?

[ESP_Angus]

Hi Alen,

It looks like maybe libusb is trying to poll some other USB device in your system. But then it moves on to the correct device, because the JTAG link comes up:

Info : JTAG tap: esp32.cpu0 tap/device found: 0x120034e5 (mfg: 0x272 (Tensilica), part: 0x2003, ver: 0x1)
Info : JTAG tap: esp32.cpu1 tap/device found: 0x120034e5 (mfg: 0x272 (Tensilica), part: 0x2003, ver: 0x1)

These lines indicate that not only is the USB connection working, the JTAG adapter is able to read data from the ESP32's debug port.


Angus

[Alen59]

On what operating system are you running openocd?

i am running windows 10

[XiotSamuel]

Is this a driver problem? one youtube video say need to reintall all the driver.

[ESP_Sprite]

If the connection otherwise works, it should be safe to ignore the ERROR lines.