I'm using the ubuntu 12.04 3.2.0-23-omap kernel
USB is extremely unsatisfactory
-its erratic
-plugging in devices and hubs can reboot the gumstix
-unpowered hubs can reboot the gumstix, but some hubs work
-only storage devices work without a hub
I believe this is caused by lack of ohci support?
I wonder if anyone can shed any light on this?
root@...:~# lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci-omap3/3p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-omap/3p, 480M
|__ Port 2: Dev 2, If 0, Class=hub, Driver=hub/4p, 480M
|__ Port 1: Dev 3, If 0, Class=vend., Driver=asix, 480M
root@...:~# uname -r
3.2.0-23-omap
On Thu, 2012-06-14 at 16:50 -0700, jumpnowdev wrote:
> root@...:~# lsusb -t
> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-omap/3p, 480M
> |__ Port 2: Dev 2, If 0, Class=hub, Driver=hub/4p, 480M
> |__ Port 4: Dev 3, If 0, Class=vend., Driver=ftdi_sio, 12M
>
> root@...:~# ls -l /dev/ttyUSB0
> crw-rw---- 1 root dialout 188, 0 Jun 14 23:44 /dev/ttyUSB0
>
> And it works, I've been using it with a Zigbee radio.
>
> root@...:~# uname -a
> Linux tide 3.2.0 #1 PREEMPT Sun Jun 3 13:50:37 EDT 2012 armv7l GNU/Linux
>
> On the build machine, the last commit hash for the sakoman kernel was
>
> scott@...$ git
> log --oneline
> 513770d mmc: omap: add sdio interrupt support
>
>
> --
> View this message in context: http://gumstix.8.n6.nabble.com/USB-working-with-kernel-omap-3-2-tp4964629p4964631.html
> Sent from the Gumstix mailing list archive at Nabble.com.
>
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