maemo.org - Talk - View Single Post - N900 will not allow USB OTG!

egoshin	2010-05-13 , 01:41
Posts: 992 \| Thanked: 995 times \| Joined on Dec 2009 @ California	#851

Originally Posted by egoshin

@Joerg

Again, good news - I repeated test suggested by you but replaced 'stop bme' to 'killall -SIGSTOP bme_RX-51'.

Now it works, even on stock (unmodified) kernel.

However, I doesn't work well with my USB memory stick because read returns error -32 (EPIPE). But it still exchanges some info because device "not accepting address 8" (or ever). A modified kernel is needed to find out details why it reads descriptors with EPIPE.

I researched a log and a kernel. The diagnostics shows that with VBUS=1 from BQxxxxx chip (no setup of VBUS in TWL4030) hard disk doesn't respond while N900 reads messages from it...

EDIT: USB memory stick, not hard disk.

But self-powered hub still responds.

Last edited by egoshin; 2010-05-13 at 04:34.

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