Why it's not possible to use USB OTG? [answered]
I want to plug external hard drive to my Jolla phone. Is it possible?
EDIT: In one answer it was said that OTG is not possible, but reasons were not told. So, what are reasons?
I want to plug external hard drive to my Jolla phone. Is it possible?
EDIT: In one answer it was said that OTG is not possible, but reasons were not told. So, what are reasons?
USB OTG is impossible. (ID pin not connected, no way to power the Vusb line)
But, USB host may be possible:
So basically this would need just a powered USB hub... (as ext hw)
kimmoli ( 2013-12-24 23:08:06 +0300 )Why USB-OTG is not possible? We have a lot of people here who would like to see explanation what is the problem? Connector? Circuitry? Code?
LaruX ( 2013-12-26 14:20:22 +0300 )why there would be the need for all USB devices if the Jolla has power out to the TOH? An USB keyboard for example should be fine without an external power. That would drain the battery quicker, anyway I'd not use Jolla that way, but Jolla should be able to support that small current drain.
c.la ( 2014-01-30 15:48:42 +0300 )Asked: 2013-12-12 00:39:59 +0300
Seen: 5,294 times
Last updated: Aug 27 '14
The SOC itself is able to handle USB OTG mode. The rest of the device is not . Its not providing any power to the upstreamport (as far as i know.) This probably is a hw issue which cant be fixxed but worked around, using a powered usb hub. We had the same problem with the galaxyS1 back in the days.
elyos ( 2014-01-28 03:20:55 +0300 )OTG USB is a feature that needs to be in the next Jolla phone:)
richardski ( 2014-03-26 18:01:44 +0300 )This would have been great to have because I need it to upload tracks to my multicopter/drone. Now I have to look for a new Android device because my old Galaxy Tab P1000 tablet doesn't support it either.
Wizah ( 2014-05-29 21:57:35 +0300 )