This appears to be the same issue with standard yocto setup as well. There are a few threads on it: Intel Edison USB host mode
I confirmed this happens still with new beta kernel that was posted on Friday
Note: I tried it with a USB2AX device, which is an Atmel 32u2 based board.
Thank you KurtE.
I went through the link you list above and I understand that there is an issue with power,
that Edison needs to have 7V to 12V on J21. I have 5.2V through a 20A capable power supply hooked to J21.
When I look into the document for the mini-break out board schematic (MINI_EDISON_BREAKOUT_HVM_8_26,pdf),
the device for power management used on the mini-breakout board is TPS62133.
The data sheet for TPS62133 shows input range from 3V to 17V.
Further examination of the data sheet appears to indicate a 5V input is OK for a 5V
regulated output (see application notes in TPS62133 data sheet).
So I think there is still a bug in the OS/software that needs to be fixed.
Is there a way in linux to test if /dev/ttyACM0 (ls /dev/ttyACM0, or lsusb or ???) is not turned on and force a turn ON?
We have been able to replicate this issue. Thank you for your feedback, the appropriate team has been informed, we are currently working on it, and it should be fixed in a future software release.
Thanks for helping to fix this bug. We are also experiencing the same problem in our setup. Do you know when will the next Edison Linux kernel be released?
We are constantly working on improving our products, however there's no ETA on when the next Edison Linux kernel will be launched.
Is a kernel patch possible as this has been a thorn in my side for some time?
Is this issue fixed? i would like to know if there is any workaround or a fix
No, unfortunately it is not resolved yet, we will have to wait until a future software release that hopefully fixes it; however there's no ETA on it.
This is a show stopper for us - any update on the software fix for this?
Is there anything we can do as a workaround? (Other than boot twice every time)