Hi,
I am debugging one problem and I will appreciate if someone can throw
some light here.
I have one board which supports OTG. It has micro-AB connectors.
It works fine as gadget then I switch its role by writing to proc file
and now it is host.
I have connector which is micro-to-miniA. If I connect any PenDrive to
it, it fails in enumeration.
It fails in hub.c file at function hub_port_wait_reset() at line
if ((portchange & USB_PORT_STAT_C_CONNECTION))
portchange comes up 3. And so as condition is true, it returns -ENOTCONN
Well, strange thing is all other devices except pendrives works fine.
I tried my cell phone (which is detected as SCSI mass storage), and usb
audio device and etc....
But none of the pendrive works... I tried Transcend, Sandisk... etc.
Kernel Source is 2.6.28. I will appreciate any pointers.
Below is output of few of my printks and my some comments....
[root@Linux /]#xyz-ehci xyz-ehci: USB bus 1 deregistered
xyz-ehci xyz-ehci: pxa9xx ehci
xyz-ehci xyz-ehci: new USB bus registered, assigned bus number 1
xyz-ehci xyz-ehci: irq 44, io mem 0x0888a000
xyz-ehci xyz-ehci: USB 2.0 started, EHCI 1.00
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
port 1, status 0101, change 0001, 12 Mb/s
Set port feature=0 at hub_port_reset : 1855
===========
This is FAIL case
*Ummm portchange:portstatus 3:257 @ hub_port_wait_reset() function :line
1801*
status is ENOTCONN hub_port_reset : 1878
============
===========
For PASS case
*Ummm portchange:portstatus 0:257 @ hub_port_wait_reset() function :line
1801*
============
--
Thanks,
Viral Mehta,
Embedded Software Engineer,
Tel. No. 91 79 26563705, Ext. 423
www.einfochips.com <http://www.einfochips.com>
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