Re: i.MX28EVK: ChipIDEA as device (or OTG) support in 3.10-rc2 or later?

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gianluca <gianlucarenzi@xxxxxxxxxxxxxxxxxxx> writes:

> Hello,
> I would like to know if there is any trick to enable the microUSB port 
> as Device (OTG or simply device) in Linux 3.10-rc2 for IMX28EVK, because 
> I am able to use it only as HOST (as the HOST Type-A Port) with a 
> Type-B-to-Host-Type-A adapter.
>
> Something in config or something in sysfs/proc/udev??? Or some mods in 
> the hardware? With LTIB 2.6.36 it was switching from Device to Host 
> simply using the correct cable (ID Pin shorted or float and an IRQ and a 
> workqueue...)

Role switching is a problem currently, indeed. I don't know specifically
about this imx board, but does writing "gadget" to
/sys/kernel/debug/ci_hdrc.0/role help (assuming you have debugfs
compiled and mounted and chipidea debugging enabled)?

Regards,
--
Alex
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