>Synopsis: Kernel detaches Arduino Leonardo (and similar) board umodem
>after the arduino boots
>Arrival-Date: Wed Jun 12 02:30:00 UTC 2013
>Originator: Mike Meyer
FreeBSD bhuda.mired.org 9.1-RELEASE-p3 FreeBSD 9.1-RELEASE-p3 #0 r250692M: Thu
May 16 11:14:23 EDT 2013
When the Arduino boards provide a umodem device to the host for programming and
serial communications with the host from the user software (the software
running after boot). The newest boards - starting with the Leonardo - also have
the ability to provide a variety of HID devices at different endpoints.
The older boards work fine. With the leonardo, the umodem device attaches as
the board boots (or resets), and the /dev/ttyU* files are created for it. The
device then detaches before or as the user code starts running, meaning the
Plug a leonardo board into a USB port on your machine. Reset it if needed. As
it reboots (the L led will be blinking), you can see the /dev/tty* files
appear. They will be gone after the reboot is finished.
I don't have a fix. The board can be programmed by hitting reset shortly before
running avrdude (so for now, this is a low priority problem).
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