QUOTE(super_evil_alien @ Nov 12 2010, 09:34 PM)
You're correct on both part.But even shortening the pins it doesn't always work perfectly.
Well,for me reading flash drives are more than enough for me.It'll help me in plenty of ways when I'm inside campus.
But that doesn't mean I'll stop working on making h-e-n detec my ext-hds
Added on November 12, 2010, 9:35 pm
Internally both micro A & B is similar.
" The OTG cable has a micro-A plug on one side, and a micro-B plug on the other (it cannot have two plugs of the same type). OTG adds a fifth pin to the standard USB connector, called the ID-pin; the micro-A plug has the ID pin grounded, while the ID in the micro-B plug is floating. The device that has a micro-A plugged in becomes an OTG A-device, and the one that has micro-B plugged becomes a B-device. The type of the plug inserted is detected by the state of the pin ID . " - Wikipedia
http://en.wikipedia.org/wiki/USB_On-The-Go
Added on November 12, 2010, 9:40 pmUSB OTG - limited to storage only ?? or more ?
USB host - has more potential, storage and peripherals.
Added on November 12, 2010, 9:47 pm" USB On-The-Go
The USB port on the tablets is a USB OTG, this means that they can be switched between client- (where you plug the tablet into a computer—for flashing and mounting cards on the computer), and host- (where the tablet acts like a computer) mode with the correct hardware adaptor.
You can find a USB OTG adapter designed specifically for the N800 and the N810 (N810 owners will need to buy both adaptors until a custom N810 adaptor is manufactured). These OTG adaptors will automatically switch the tablet into host-mode when plugged in.
You can also buy a "dumb" adapter that will provide the correct connections, but will not automatically switch the tablet into host-mode from most online and some in-store retailers. Then you can simply switch into host-mode manually. "in N800/N810
switching modes manually.
echo host > /sys/devices/platform/musb_hdrc/mode
echo otg > /sys/devices/platform/musb_hdrc/mode
- so the conclusion is, the funny looking microAB connector just facilitates auto switching from client mode to otg when connected.
- using normal cable you have to switch manually to OTG mode
taken from -
http://wiki.maemo.org/USB_host_modeThis post has been edited by jananan: Nov 12 2010, 09:48 PM