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MohammadAG is offline MohammadAG
2010-05-28 , 20:38
Posts: 2,473 | Thanked: 12,265 times | Joined on Oct 2009 @ Jerusalem, PS/IL
#971
imo using a modified cable/adapter should be avoided. Priority should be given to fix the driver, instead of exploiting it.
 

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javispedro is offline javispedro
2010-05-28 , 21:11
Posts: 2,355 | Thanked: 5,249 times | Joined on Jan 2009 @ Barcelona
#972
Originally Posted by MohammadAG View Post
imo using a modified cable/adapter should be avoided.
Don't worry, as doing any id pin work is meaningless, unless ID pin is also connected to isp1707 (which it isn't afaiu), or twl3040 is in some hardcoded way altering the behaviour of the SoC's usb controller (which it isn't either, as it's not connected via ulpi).

Patching twl3040-usb to report about id pin always connected is the first thing I did (and I guess the first thing many others did...).
 

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blue_led is offline blue_led
2010-05-28 , 21:16
Posts: 306 | Thanked: 566 times | Joined on Jan 2010 @ Romania
#973
connection to a pc is not needed
my n900 can talk with my olympus camera using an Y cable powering both n900 and camera. nu external powered hub

until now i am happy
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GI jack is offline GI jack
2010-05-28 , 21:16
Posts: 50 | Thanked: 36 times | Joined on Feb 2010
#974
Originally Posted by qgil View Post
You can't connect a camera in host mode, but the N900 comes with a good camera. The use case is still relevant but is not as heavy as in previous Maemo devices.

You can't connect a hard drive in host mode, but the N900 comes with a big internal memory expandable with a MicroSD card. The use case is still relevant but is not as heavy as in previous Maemo devices.
I don't care about this, the camera is good enough, and the camera can afford to gain a few more features in software, like a timer. The flash card is also big enough for everything I'd need it for. If not, I can always SCP and SFTP files to my server. I have but haven't had to use my ext3 formatted microsd card yet.

What I need USB OTG for is something else. odd devices...

like a usb to serial cable/converter, a USB ethernet device, and connecting to other phones via usb for programming/address book swap.
 

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javispedro is offline javispedro
2010-05-28 , 21:34
Posts: 2,355 | Thanked: 5,249 times | Joined on Jan 2009 @ Barcelona
#975
Originally Posted by blue_led View Post
connection to a pc is not needed
my n900 can talk with my olympus camera using an Y cable powering both n900 and camera. nu external powered hub
Is your camera a OTG device also? Can reproduce it with a dumb usb stick?
 

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joerg_rw is offline joerg_rw
2010-05-28 , 22:11
Posts: 2,222 | Thanked: 12,651 times | Joined on Mar 2010 @ SOL 3
#976
Originally Posted by javispedro View Post
Is your camera a OTG device also? Can reproduce it with a dumb usb stick?
http://www.google.de/search?q=07b4+0...UTF-8&oe=UTF-8

ID 07b4:0118 Olympus Optical Co., Ltd Mju Mini Digital/Mju Digital 500 Camera


Device Name: (OLYMPUS u700,S700 USB Device)
PnP Device ID: VID = 07B4 PID = 0118
Serial Number: B25769076
Revision: 1.00
Device Type: Standard USB device - USB2.0 Full-Speed (USB1.1)
Chip Vendor: (No match record)
Chip Part-Number: (No match record)
Product Vendor: OLYMPUS
Product Model: u700,S700

It's obviously a Olympus mju 500 or C-700
As as the c-700 is some >6 years old, I wasn't able to find decent datasheets (though wasn't to much into searching) to tell if that one support direct pict bridge. Chances are high for the more probable mju 500 though, which means the cam talks to printers as a host, if it's true.


Confirmed:
http://www.ciao.de/Olympus_u_MJU_DIG...#productdetail
PRINT Image Matching, PictBridge-Unterstützung

So now we know we don't need a laptop for kickstart OTG, a cheap mju 500 will do ;-P

I support MohammadAG's opinion as of his last post
/j
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Last edited by joerg_rw; 2010-05-28 at 22:32.
 

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sarahn is offline sarahn
2010-05-28 , 22:34
Posts: 243 | Thanked: 172 times | Joined on Sep 2007 @ silicon valley
#977
OTG adapter FYI, this is how I ground the id pin

http://www.electronicproductonline.c...oducts_id=2043
 
blue_led is offline blue_led
2010-05-28 , 22:37
Posts: 306 | Thanked: 566 times | Joined on Jan 2010 @ Romania
#978
@ javispedro
yes . usb dumb stick "works" but every 3 seconds n900 run like crazy enumerating this stick

@joerg

my camera is u1030SW
when i apply 5v a menu appear on display like n900 ( PC . fast print , ..)

so n900 can act as a host without help of any smart device
5v can come from inside or outside
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Last edited by blue_led; 2010-05-28 at 22:52.
 

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sarahn is offline sarahn
2010-05-30 , 06:12
Posts: 243 | Thanked: 172 times | Joined on Sep 2007 @ silicon valley
#979
For anyone who has a peripheral at least half working: can you try

Code:
echo -1 >/sys/module/usbcore/parameters/autosuspend
to see if that stops the constant re-enumeration? By default that value is set to 2 which could relate to a re-enumeration every 3 seconds.
 
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Bec is offline Bec
2010-05-30 , 07:05
Posts: 876 | Thanked: 396 times | Joined on Dec 2009
#980
Guys this is great news!

I only wish someone could produce a gizmo that has an USB port and also charges your phone
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