Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED

[mrtom31@hotmail.fr]

Hello,

I can avoid getting

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Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED

when I want to flash esp32cam with esp-prog.

I updated usb driver with zadig to WinUSB v6.1.7600.X:



But I am still getting this error.

I compile through platformIO and the flashing isn't stable, sometimes I have this output:

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Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED
** Programming Started **
** Programming Finished **
** Verify Started **
** Verified OK **
** Programming Started **
** Programming Finished **
** Verify Started **
** Verified OK **
** Programming Started **
** Programming Finished **
** Verify Started **
** Verified OK **
shutdown command invoked
=================================================================================================== [SUCCESS] Took 62.58 seconds ===================================================================================================

Terminal will be reused by tasks, press any key to close it.

Sometimes I have this one:

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Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED
** Programming Started **
Error: timed out while waiting for target halted / 4 - 2
Error: xtensa_wait_algorithm: not halted 0, pc 0x40090068, ps 0x60025
Error: Failed to wait algorithm (-302)!
Error: Algorithm run failed (-302)!
*** [upload] Error 3221225477

How to workaround it?

Thanks

[davidjmstewart]

I am in exactly the same situation as you with my DevkitC_V4. Did you resolve this issue?