raspberrypi
dev_hid_generic_inout Appears to hang when reading
Hi. I've tried using hid_test.py from the tinyusb examples to test this example, but it seems to hang the Pico when trying to read.
Host system: Macbook Pro M1 MacOS Big Sur 11.2.3 Connected via USB hub
I am having the same issue. Could you solve it? I have observed that when you flash the *.uf2 file present in pico-examples, it works just fine.
Huh? https://github.com/raspberrypi/pico-examples/search?q=dev_hid_generic_inout&type=code :confused:
Huh? https://github.com/raspberrypi/pico-examples/search?q=dev_hid_generic_inout&type=code 😕
The link is broken. It says "We couldn’t find any code matching 'dev_hid_generic_inout' in [raspberrypi/pico-examples]"
Yeah, exactly. Could you explain where the dev_hid_generic_inout you're talking about is located, because according to GitHub it's not in this repo? I'm also unclear what you mean by "I have observed that when you flash the *.uf2 file present in pico-examples, it works just fine." ?
I should have been more clear. When you build the whole example directory, in the build directory of pico examples, the *.UF2 file of this particular example as well as other examples is built, as mentioned on the pico-examples github page in USB Device section:
Most of the USB device examples come directly from the TinyUSB device examples directory here. Those that are supported on RP2040 devices are automatically included as part of the pico-examples build as targets named tinyusb_dev_<example_name> e.g. https://github.com/hathach/tinyusb/tree/master/examples/device/hid_composite is built as tinyusb_dev_hid_composite
I flashed the tinyusb_dev_hid_generic_inout.uf2 file located at pico-examples\build\usb\device\tinyusb_device_examples\hid_generic_inout\ and it worked as expected with the python script that is provided with the example on TinyUSB's github page.
Ahh! Thanks for the extra explanation :+1:
tinyusb_dev_hid_generic_inout comes from the tinyusb repo, so that's indeed why I couldn't find it in pico-examples.
it worked as expected
That's great to hear!
So has this problem been solved, or could you explain what you meant with "I am having the same issue." ?
The problem is not solved yet.
When I copy the source code of the example from tinyUSB and keep other files like tusb_config.h, usb_descriptors.c and usb_descriptors.h 'as it is' as they are in the example code of dev_hid_composite(which also comes with pico-examples), I am having the issue where the python script will take the input, but it just hangs there. It won't loop back the sent string.
But the python script works fine when I simply flash the *.uf2 file which is built from TinyUSB source.
I thought there must be some USB driver issues (just a guess), so I tried it on Linux and the problem remained.
Also, when I copy paste the tusb_config.h file that comes with TinyUSB examples, I get errors in the macros.
I'm not sure I follow, so pinging @hathach as he probably has a better understanding of what's going on.
I wish I had written more about this in-depth when I first posted about it, because now I remember nothing about the circumstances around it. I'll see if I can once again reproduce it on my end.