I can't get OTG host mode to work with any recent kernels. I'm curious
if anyone else has tried this.
It may well be something most people don't do.
I've tried this on our custom hardware (omap3530/tps65930) and on a
beagleboard with the same
results. Our OTG hardware is identical to the beagleboard.
I am using a special mini-B cable which has the ID pin grounded. I know
about forcing the
mode with echo "host" >/sys/devices/platform/musb_hdrc/mode.
When I use a 2.6.28 kernel built using the same patches as are in OE,
OTG host works fine. I can get the controller
into host mode. When I use any kernels from the omap git tree past
2.6.28 it doesn't work. The controller
stays in "b-mode" and won't switch.
I can dig into it and figure out why, but I thought I'd ask in case
anyone else has already solved it. I've written
some diagnostics for the OTG controller and found it's finicky about
getting into host mode, sometimes
wanting the phy to be reset before it will switch.
-brad
-----------
Brad Parker
Heeltoe Consulting
http://www.heeltoe.com
781-483-3101
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