Hi
Il 27/apr/2014 19:57 "Eric Nelson" eric.nelson@boundarydevices.com ha scritto:
Hi Eric,
On 04/27/2014 02:05 AM, Eric Bénard wrote:
Hi Otavio,
Le Sat, 26 Apr 2014 19:47:27 -0300, Otavio Salvador otavio@ossystems.com.br a écrit :
I'd like to know if someone has succeed in using usbtty with i.MX6. I am interested in using it for one board but been not succed, it seems:
/home/otavio/hacking/u-boot/drivers/serial/usbtty.c:553: undefined reference to `udc_init' drivers/serial/built-in.o: In function `usbtty_init_instances': /home/otavio/hacking/u-boot/drivers/serial/usbtty.c:686: undefined reference to `udc_setup_ep' /home/otavio/hacking/u-boot/drivers/serial/usbtty.c:708: undefined reference to `urb_link_init' /home/otavio/hacking/u-boot/drivers/serial/usbtty.c:709: undefined reference to `urb_link_init' /home/otavio/hacking/u-boot/drivers/serial/usbtty.c:710: undefined reference to `urb_link_init ...
Does someone got it working?
you need a gadget driver for the i.MX6 USB port which doesn't seems to exist in u-boot.
We're using UDC on all of our i.MX6 board. Marek and Troy have had this working for a while now.
I think the two key patches are these: https://github.com/boundarydevices/u-boot-imx6/commit/f3d7cff https://github.com/boundarydevices/u-boot-imx6/commit/f016f8c
We've been using it a lot for USB networking, where it provides a very nice download mechanism. See this post for details: http://boundarydevices.com/u-boot-2014-01/#usbrecover
I think usbtty is a different thing though (USB serial adapter connected to a Host port).
usbtty should be a way to have the console on a gadget interface
Michael
We haven't tested that, but it should work. Most of our USB Host uses have been for USB sticks and keyboards.
Regards,
Eric _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot