N900 will not allow USB OTG! - Page 56 - maemo.org

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sarahn	2010-01-06 , 17:42
Posts: 243 \| Thanked: 172 times \| Joined on Sep 2007 @ silicon valley	#551

Originally Posted by cb22

Just recompiled and flashed a kernel with the changes above, unfortunately doing an
Code:
echo M > /proc/driver/musb_hdrc
for me had no effect whatsoever.

Is this forcing the twl4030 in addition to the omap3?

	Siggen	2010-01-06 , 21:43
	Posts: 204 \| Thanked: 75 times \| Joined on Jan 2010 @ Norway	#552

Originally Posted by twoboxen

Patched what, Maemo? If so, that would be awesome. And, perhaps only one of us should email him No need to piss him off!

I could not wait, I emailed him.
If anyone else does, or wants to that's up to you, but you are reading right here that its all ready been done

I will post an update if I get an answer

And to answer your question, it would be patching the Linux kernel to support USB OTG or USB functionality on the twl4030 chip

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captainqtp	2010-01-06 , 22:40
Posts: 50 \| Thanked: 37 times \| Joined on Nov 2009	#553

Sounds hopeful at least... I was wondering... why is there a program called usbcontrol in extras-devel? The description is "Enables USB Host port to use e.g. memory sticks, keyboards and mice." version 1.03, 5kb.

Was this only intended for the n8xx series?

	Siggen	2010-01-06 , 22:51
	Posts: 204 \| Thanked: 75 times \| Joined on Jan 2010 @ Norway	#554

Originally Posted by captainqtp

Sounds hopeful at least... I was wondering... why is there a program called usbcontrol in extras-devel? The description is "Enables USB Host port to use e.g. memory sticks, keyboards and mice." version 1.03, 5kb.

Was this only intended for the n8xx series?

As far as I know yes, but it was upped on the N900 repo's on a assumption it would work. Though I have only been active here for one or two days now, after I ordered my first maemo device ever the N900.

	Siggen	2010-01-07 , 16:51
	Posts: 204 \| Thanked: 75 times \| Joined on Jan 2010 @ Norway	#555

On Wed, Jan 06 I wrote:

Hello i am sorry to bother you, but do you know if the twl4030 USB chipset that is in the N900 supports USB OTG or being a USB host on hardware level?
I am basically asking if we will ever see USB host functionality on the N900 in the future.
This would help a lot in my humble homebrew coding and homebrew hardware development.

The reply was as follows:

no it won't support host mode. ID pin is missing on that board and there's no way to force it to ground on SW side.

--
balbi

I have sent a new mail to ask about an external wire from the usb port to ground on the battery but my guess is to no avail

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go1dfish	2010-01-07 , 17:01
Posts: 237 \| Thanked: 157 times \| Joined on Dec 2009 @ San Diego, CA	#556

Given how weakly mounted the USB port seems to be I'm not so sure you want to be connecting/disconnecting peripherals much from it regardless:
http://talk.maemo.org/showthread.php?t=37107&page=9

Especially considering it is the only way to charge short of an external charger.

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	Siggen	2010-01-07 , 17:46
	Posts: 204 \| Thanked: 75 times \| Joined on Jan 2010 @ Norway	#557

Im only looking personally to connect a ps3 controller, pair it, and use it via bluetooth. (no not controll the ps3 with the n900)

this only reqires a short ammount of time, one time to pair, but requires host capability

andree	2010-01-07 , 23:03
Posts: 119 \| Thanked: 110 times \| Joined on Sep 2009 @ Prague	#558

Siggen: could you add to the question, if Felipe knows about the TESTMODE register and esp. FORCE_HOST bit...? (It's described in section 23.1.4.11 of OMAP3430 tech. ref. manual, rev. D)... I'd ask myself, but I don't want to spam him...

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titan	2010-01-09 , 09:22
Posts: 946 \| Thanked: 1,650 times \| Joined on Oct 2009 @ Germany	#559

Originally Posted by cb22

Nope... Nothing. I even added a printk to verify that it was being called, and it was.

could you printk the register before and after setting the bit? does it change?

	Siggen	2010-01-09 , 23:01
	Posts: 204 \| Thanked: 75 times \| Joined on Jan 2010 @ Norway	#560

Originally Posted by andree

Siggen: could you add to the question, if Felipe knows about the TESTMODE register and esp. FORCE_HOST bit...? (It's described in section 23.1.4.11 of OMAP3430 tech. ref. manual, rev. D)... I'd ask myself, but I don't want to spam him...

Well it cant force the ID pin to ground anyway, so we are still not able to get host.

I'm sorry, he still has yet to answer my second e-mail. I will ask him if he is interested to talk about it though.