Re: [bug #60575] Permission denied on macOS Big Sur

[Hans Eirik Bull]

I'm not sure what I do wrong.

After running ./configure I get the following output:

Configuration summary:
----------------------
DO HAVE    libelf
DO HAVE    libusb
DO HAVE    libusb_1_0
DON'T HAVE libftdi1
DO HAVE    libftdi
DON'T HAVE libhid
DO HAVE    libhidapi
DO HAVE    pthread
DISABLED   doc
DISABLED   parport
DISABLED   linuxgpio
DISABLED   linuxspi

Then I remove all old .o files and the previously compiled avrdude binary and 
run:

sudo make all

After running the following command, I still get an error when trying to make 
the Xplained Mini UPDI programmer to work:

/Users/hans/Downloads/SVN/avrdude/avrdude 
-C/Users/hans/Documents/Arduino/hardware/MegaCoreX/megaavr/avrdude.conf -vvv 
-patmega4808 -cxplainedmini_updi -Pusb

...

         Using Port                    : usb
         Using Programmer              : xplainedmini_updi
avrdude: jtag3_open_updi()
avrdude: usbdev_open(): Found mEDBG CMSIS-DAP, serno: MICROUPDIPROGRAMMERX
avrdude: usbdev_open(): error claiming interface 0: Permission denied
avrdude: usbdev_open(): error claiming interface 1: Permission denied
avrdude: usbdev_open(): no usable interface found
avrdude: jtag3_open_common(): Did not find any device matching VID 0x03eb and 
PID list: 0x2145

I have no idea how to use dtruss and what to do with it, sorry.

Hans

> 14. des. 2021 kl. 14:39 skrev Joerg Wunsch <INVALID.NOREPLY@gnu.org>:
> 
> Follow-up Comment #9, bug #60575 (project avrdude):
> 
> Strange.
> 
> I've meanwhile got a small Macbook, it shipped to me with 12.0.1 (Monterey).
> Just tested the 6.4 release candidate yesterday, and all in all, MacOS is the
> OS causing the least trouble in all respects (Linux and FreeBSD need device
> permission tweaking, Windows needs a lot of driver teasing and installation).
> 
> I built the prerequisites (autoconf/automake, libraries) with macports rather
> than brew, but that's not supposed to affect the permissions on a self-built
> avrdude binary in any way.
> 
> For those that can observe it, please try to dtruss it and see on which device
> it happens.
> 
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> 
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> 
>  <https://savannah.nongnu.org/bugs/?60575>
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