Database Users

USB Host

Can anyone confirm that the Universal does not have USB host. Most places just say no but there isn't really any hard evidence of it. I know the processor supports it but did they put in the necessary circuitry for it? Whats strange is that the Universal's miniUSB port is the same as my Sharp Zaurus's miniUSB port and my USB host adapter fits in. Does not fit into normal miniUSB ports. Just the Zaurus which had USB host and the HTC Universal. Just seemed a bit odd to me. I tried it of course and did not do anything.
I'll experiment with this further and check that image of the mainboard closely.

everybody who posted about it in this forum reported it to not support host
connector means nothing all htc devices since the universal have had the same connector
heck these days they are talking about making it the std connector for all phones nokia and the likes too

This all hinges on the connector, and the hardware used to drive the connector. The Universal(and indedd, all mobile devices) use mini-USB connectors, which do NOT incorporate a host control circuit. This means that, since USB uses a protocol that might be termed as "Speak when spoken to", your device can answer the computer when it asks, it can NOT ask another device to speak to it.
To sum it up, you can't connect a pendrive to your PDA, but you can connect it to your computer, precisely because of the lack of the USB host controller unit.
Hope this cleared it up for you...
Cheers

This is not what I meant. I'm talking about a specific type of miniUSB connector.
And in the recent announcement to make a standard cell phone connector, they chose microUSB.
This is what I mean.
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HTC Universal's miniUSB port.
A normal miniUSB port.
My miniUSB -> USB host adapter from my Sharp Zaurus fits into only the Zaurus and the HTC Universal. Doesn't do anything in the HTC Universal though.

Not possible.
If you check on the internals, you will find that there is no power output to the usb port in anyway. so, its a hardware limitation and there is no way it will support hosting, be rest assured!
San

http://en.wikipedia.org/wiki/USB
host vs. peripherals
connectors mean nothing

I found a thread in the German PPCWelt.info forum where several people say that there MDA Pro supported USB host, with a special driver:
http://www.ppc-welt.info/community/showthread.php?t=74113&highlight=mda+pro+usb+host
I don't know how reliable this is (not every USB client can act as a USB host because of different hardware AND software), but perhaps you want to try it.
Alex
EDIT: They also say that your USB device needs a power supply because the MDA can't do that (external hub). Other people even say that without such a power supply your MDA could be damaged. This Engadget article is also mentioned:
http://www.engadget.com/2005/09/02/youve-got-htc-universal-questions-weve-got-htc-universal/
EDIT2: http://forum.xda-developers.com/viewtopic.php?t=26742&start=25 (with an official statement of HTC: no, it WON'T work.)

Rudegar said:
http://en.wikipedia.org/wiki/USB
host vs. peripherals
connectors mean nothing
Click to expand...
Click to collapse
I know that. I just wanted to know if the hardware was there for it thats all.

the hardware maybe there deep inside the cpu but the pcb lanes where maybe support chips were never connected rendering it absent

can some of german guys test it and report it to this thread.?>

galaxy tab usb adapter and HDMI adapter for sale on site

I know there was a lot of confusion when details were first released on multiple sites including engadget but it looks like the USB adapter will work for the 10.1 check there web site for details. they are out and for sale.
on the bottom of the page it says goes great with.. and youll see all 10.1 devices
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http://www.samsung.com/us/mobile/galaxy-tab-accessories/EPL-1PL0BEGSTA

I think the confusion was with the SD adapter. It said "8.9 only" on Samsung CTIA slide. Hopefully they'll have one.

Anyone else think it's a bit of a con to release these all as separate adapters (i.e. if you want HDMI then that's an adapter, USB is another adapter, SD card slot is another adapter). I think Samsung could have put all those connections into a single adapter. Also, it's weird how the HDMi adapter has a little bit of cable to give some flex in the connection where as the USB adapter is just a single block.

Techno79 said:
Anyone else think it's a bit of a con to release these all as separate adapters (i.e. if you want HDMI then that's an adapter, USB is another adapter, SD card slot is another adapter). I think Samsung could have put all those connections into a single adapter. Also, it's weird how the HDMi adapter has a little bit of cable to give some flex in the connection where as the USB adapter is just a single block.
Click to expand...
Click to collapse
Considering how big these adapters are, shame they couldn't put USB and SD or USB and HDMI or all three on a single adapter.
Even the media port doesn't appear to have HDMI out it, looks like it has another 30 pin port on the back and you have to buy the HDMI adapter for that.
All these adapters, all being sold separately is gonna get quite pricey too. Even Apple was compassionate enough to sell the USB and SD adapter in a single kit for $30 (saving $10 over buying each separately for $20).
PS. Though I imagine some third party might save us and come up with some adapter that combines multiple things together. They've done it with the iPad adapters.

Ugh these accessories are such a rip off. $19.99 for the damned additional data cable?! The hdmi cable port is also $29.99, just absolutely ridiculous. I'll prob eventually snag one regardless... :-/

Ravynmagi said:
PS. Though I imagine some third party might save us and come up with some adapter that combines multiple things together. They've done it with the iPad adapters.
Click to expand...
Click to collapse
Most definitely. This tablet is going to have so much aftermarket accessory support, we won't know where to begin.

Techno79 said:
Anyone else think it's a bit of a con to release these all as separate adapters (i.e. if you want HDMI then that's an adapter, USB is another adapter, SD card slot is another adapter). I think Samsung could have put all those connections into a single adapter. Also, it's weird how the HDMi adapter has a little bit of cable to give some flex in the connection where as the USB adapter is just a single block.
Click to expand...
Click to collapse
With the exception of jump drives, most USB devices have their own cable.

Does anyone know if the HDMI converter works with the 7" Tab?

You guys are lucky to see accessories, the UK mob don't even have a clue about the 10.1

$40 for HDMI!?! Are they ****ing serious?! Who do they think they are? Apple?!

A bit more on this....
http://www.engadget.com/2011/06/16/silhouette-spoiling-usb-host-adapter-arrives-for-the-galaxy-tab/

Does anyone tried this with the 10.1v?

[Q] USB Keyboard not detected (micro USB)

Hi,
I had a new case and keyboard arrive for my nexus today but the keyboard doesn't seem to be detecting at all. I've been browsing all evening trying to find a fix but to no avail so far...
These are the specifics;
Nexus 7 wifi 32gb stock rom, JB 4.2.1
This exact MINI USB Keyboard (Can't identify manufacturer as the keyboard is built in to the case)
Mini usb - micro usb connector
I have verified the usb connector is working fine as I am able to plug in a mini usb charger to the nexus through it and it charges fine.
When I plug in the keyboard it doesn't work or seem to be detected in any way.
Where am I going wrong?
I can't try a USB OTG cable as I am not connecting a full size USB peripheral. I installed usb host diagnostics and ran it with the keyboard connected but I'm not sure how to interpret the results which are as follows;
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Additional info;
I added a 51-android.rules file as per the process in this thread, and included ALL manufacturers and ID codes but still no fix

You *do* need an OTG cable. It has two pins (4 and 5) connected. That's what tells the tablet that it's in host mode. If you want to adapt yours, here's the procedure (obviously, use at your own risk!):
http://forums.androidcentral.com/go...iy-making-your-own-otg-cable-image-heavy.html

tjupille is correct, a normal micro USB cable will only have 4 pins connected, the 5th pin needs to be grounded on the tablet side of the cable. If you can find/make a such a cable and if it's a standard USB HID keyboard then it should work out of the box on a stock N7 without the need for any special configuration.

I have also seen where some non-stock ROMs lose the OTG support. This wouldn't be your case as you are running what looks to be a stock ROM. Now then, I have had a few OTG cables go bad. Some of them are just made cheaply.

Thanks all, I understand the otg cable setup much better now. I figured that with a standard connection android should see the device as an input device and it would just work. Have a cable on order now. I have the kit to mod my existing adapter but for such a small amount of money I'd rather not gamble frying my nexus. Look forward to when it arrives as I keep going to use the hard keys!
Sent from my Nexus 7 using xda app-developers app

ixampu OCEANSIDE-3
dealextreme has some otg cables, you can purchase it.

A # of eBay stores carry these Micro USB Host Mode OTG Cable, originally designed for the Samsung Galaxry devices - I got one as a bundle along with the swivel case & screen protector, etc. Inexpensive & it works - on 4.1.2 and on 4.2.1 depending on the rom & kernel.
One of them selling a pair for under $5, free shipping and they are based in the LAX area of CA, mine arrived in less than a week - vendor has been around for years and sourced them mostly from oversea. The short piece of connecting cable is a bit longer than picture but still fit flat & tight against the bottom/side of the N7 with the case, so it won't be too bad flying 6 or 10+ hours with my own huge library collection of DVD's on a stick. Not a vendor / product endorsement & plenty of sources to get yours, plus Amazon ...
http://www.ebay.com/itm/2x-Micro-US...338153?pt=PDA_Accessories&hash=item56517d1069

Mine was quite difficult to find as it's a micro one end and mini the other, but I've located one and it's ordered. Thanks for the links guys. I'm in the uk, it seems to be particularly difficult to find the one I need here for some reason!
Just my $0.02 on the whole OTG thing though.... why can't it be that simple to just connect a usb device and for it to work like things used to?? Why the need for an adapter? Surely these keyboard cases should all be OTG wired for maximum compatibility as a keyboard is never going to be a host device!
Ho hum...

Then if i understand good i need otg cable to be able to connect my keyboard ! The problem is my keyboard is already micro usb and i just find
OTG micro usb to usb 2.0 .
How to do then ?

Well I'm glad I found this thread after a couple of hours of fruitless searching (& mostly getting stuff about flash drives).
I tried to connect a case logic mini usb keyboard which I acquired for the princely sum of ten bucks, by using the cable that shipped with the Nexus and a usb gender changer, but the tablet did not recognize the device. I've had no trouble hooking the tablet up to a pc for chrome debugging, file xfers etc, and I tested the mini kb on a couple of pcs.
I thought it was something like this OTG adaptor thing, but couldn't figure out what was special about it vs. bog-standard usb plugs. I ordered one along with a powered usb hub, in case that was the/another issue, and look forward to getting this thing to work.
Thanks!
Edit: Sweet! The OTG adaptor worked like a charm, and with a powered hub I can run a wireless mini-mouse too.

Hi guys, I know this thread is quite old, but I have very, very important problem:
I've recently bought the same built-in to case keyboard with two wires: micro and mini.
The problem is that the micro one connected to the Nook Tablet or HTC Sensation does not work (although in case of HTC Sensation it is detected!).
When I connect the same keyboard to my sister's no-name tablet (something-made-in-China) via miniUSB it works like a charm! With no adapters, nothing!
The question is: should I try to find OTG adapter (and if yes, then which one? miniUSB to microUSB, or rather microUSB to microUSB?) ?
Thanks in advance for all your replies...

Waszker said:
Hi guys, I know this thread is quite old, but I have very, very important problem:
I've recently bought the same built-in to case keyboard with two wires: micro and mini.
The problem is that the micro one connected to the Nook Tablet or HTC Sensation does not work (although in case of HTC Sensation it is detected!).
When I connect the same keyboard to my sister's no-name tablet (something-made-in-China) via miniUSB it works like a charm! With no adapters, nothing!
The question is: should I try to find OTG adapter (and if yes, then which one? miniUSB to microUSB, or rather microUSB to microUSB?) ?
Thanks in advance for all your replies...
Click to expand...
Click to collapse
OTG for the nexus 7 is a bit different in terms of hardware requirements. Pins 4 and 5 on the micro USB side have to be shorted together for it to work. You will likely need an OTG cable that says in the description that it is compatible with the Nexus 7. Amazon and eBay are decent places to go.
Sent from my Nexus 7 using xda premium

Hey, I bought the same keyboard, foolishly.
Is buying another cable the only way to get to work?

USB OTG Interface behavior VS USB Interface?

Hi, I am relatively new to digital 'prototyping' so USB protocols and almost everything digital is new to me.
The long and short of my question is, if I plugged a standard USB flash drive into an OTG adapter, and then plugged all that into a micro USB to standard USB (which I doubt actually exists) and plugged that combo into a PC, would I be able to access the flash drive? How exactly do OTG devices VS 'regular' USB devices work?
From the circuit schematics I've studied, it appears that the only difference between a standard USB and OTG interface is a bridge across pins 4 and 5. So how would this affect plugging said OTG device into a PC?

Yes. Long as your device supports it.
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That is my $2 otg adapter...I plug in external HDD...flash drives ...keyboard... Mouse...PlayStation controller..
.tech you can make your own BC the pin config is only diff.
Sent from my Galaxy Nexus using Tapatalk 2

So if I directly hardmodded a standard USB flash drive with a micro USB plug, bridging pins 4 and 5 to make the device OTG-ready, if I plugged that now hardmodded flash drive into a micro USB (female) to USB A (male) the PC would still read the drive as a standard flash drive?
This makes sense because apparently on the micro-usb interface, pin 4 is "sense"?

Elite83 said:
So if I directly hardmodded a standard USB flash drive with a micro USB plug, bridging pins 4 and 5 to make the device OTG-ready, if I plugged that now hardmodded flash drive into a micro USB (female) to USB A (male) the PC would still read the drive as a standard flash drive?
This makes sense because apparently on the micro-usb interface, pin 4 is "sense"?
Click to expand...
Click to collapse
Yes .
Sent from my Galaxy Nexus using Tapatalk 2

Thank you for your assistance.

Yes/no.
The standard (full-size) USB A and B connectors only have 4 contacts and 4 conductors.
The ID pin (#4) is only on USB mini and micro connectors.
You need to signal your cell phone to go into host mode.
That means that the connector plugged directly into the cell phone has to have a grounded pin #4.
Pin #4 is never carried over the cable.
In short, you need an OTG adapter plugged into your cell phone.
Modding other parts of the cable or the USB device you are using won't do anything.
You can (as I have done) take a razor to the connector that plugs into your cell phone,
take the connector apart and solder a wire from pin #4 to ground.

i9505 MHL with CM12 and other Lollipop roms (no TW)

Hi guys,
can anyone help me get my MHL connection working with i9505 running CM12?
I bought a new MHL adapter (one side microUSB - charging port - HDMI out + reduction for micorUSB for S3) then I connected to my Samsung TV (older model like 4 years) and ... nothing happened on both sides. The only thing I saw was a phone charging from the adapter (because of external charger). Do I need to modify something, or is it my TV not supporting?
Appreciate help

bump --- really no one using MHL adapters?

s3icc0 said:
bump --- really no one using MHL adapters?
Click to expand...
Click to collapse
Hi!
I've got some information, I think I can help you.
First is support for HDMI in CM12, i checked it on SaberMod CM12 and it's works. I dont know what with another CM12, CM11, MIUI build, TW rom support that but Live Demo Unit soft (S4 with Retail Mode and without GSM) no.
Second, what type of MHL you have?
- MHL1 with 5-pin cable - this is for S2, Note (1) Glalaxy Nexus and some another. Probably incompatible.
- MHL1 with 11-pin cable - for S3, Note 2, S4 and Note 3 work good
If you have MHL with 11-pin cable and it's not working you may use another reduction for micorUSB, maybe your is damaged or MHL is damaged.

Kryzyss said:
Hi!
I've got some information, I think I can help you.
First is support for HDMI in CM12, i checked it on SaberMod CM12 and it's works. I dont know what with another CM12, CM11, MIUI build, TW rom support that but Live Demo Unit soft (S4 with Retail Mode and without GSM) no.
Second, what type of MHL you have?
- MHL1 with 5-pin cable - this is for S2, Note (1) Glalaxy Nexus and some another. Probably incompatible.
- MHL1 with 11-pin cable - for S3, Note 2, S4 and Note 3 work good
If you have MHL with 11-pin cable and it's not working you may use another reduction for micorUSB, maybe your is damaged or MHL is damaged.
Click to expand...
Click to collapse
thanks for answer!!!
The adapter is new and is for the newer models - Note 2,3 S3,4 - I tried connecting from microUSB and also with the reduction for S3 (different shape of a connector a little) - but still no go. TV saying no signal. Let's assume my connector is not broken (everything else works)
I am on AntaresOne's CM12 optimized. so I will try to ask in the thread you posted - maybe ther are some modification of the ROM inside which allows MHL.

and also with the reduction for S3 (different shape of a connector a little)
Click to expand...
Click to collapse
What you mean? S4 like S3 have the same microUSB port, can't be another shape of connector. The best way it to show your MHL cable. I have that:
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I think you mean adaptef from 11-pin to 5-pin, right?

Kryzyss said:
What you mean? S4 like S3 have the same microUSB port, can't be another shape of connector. The best way it to show your MHL cable. I have that:
I think you mean adaptef from 11-pin to 5-pin, right?
Click to expand...
Click to collapse
I tried the microUSB reduction exactly as on your picture - the very left one (they probably forget to put S4 label on it - only S3 label for the reduction - so I tried both ...)

s3icc0 said:
I tried the microUSB reduction exactly as on your picture - the very left one (they probably forget to put S4 label on it - only S3 label for the reduction - so I tried both ...)
Click to expand...
Click to collapse
Right, box have not label with S4 but for me work
I'm sorry, but I have to ask to be sure - you connect microUSB to S4, big usb to power (usb charger/usb port in TV) and HDMI to TV?

Kryzyss said:
Right, box have not label with S4 but for me work
I'm sorry, but I have to ask to be sure - you connect microUSB to S4, big usb to power (usb charger/usb port in TV) and HDMI to TV?
Click to expand...
Click to collapse
I have slightly different model: I connected the (s3) reduction to the adpter microUSB - connect to phone. Then take my charger and connect it to the body of the adapter. Then the whole system is connected to HDMI.
http://www.datart.cz/Kabely-k-mobil...HL-kabel-micro-USB-HDMI-A-pro-smartphone.html

s3icc0 said:
I have slightly different model: I connected the (s3) reduction to the adpter microUSB - connect to phone. Then take my charger and connect it to the body of the adapter. Then the whole system is connected to HDMI.
http://www.datart.cz/Kabely-k-mobil...HL-kabel-micro-USB-HDMI-A-pro-smartphone.html
Click to expand...
Click to collapse
I understand, like I say before you use reduction from 11-pin to 5-pin, this is for older device. Don't use it

Kryzyss said:
I understand, like I say before you use reduction from 11-pin to 5-pin, this is for older device. Don't use it
Click to expand...
Click to collapse
will try again - but i am suspicious there is HDMI support missing in the ROM I use

@Kryzyss can I ask you to try if MHL is working for you with this kernel: http://forum.xda-developers.com/showthread.php?t=2590246
DL link for CM12: https://www.androidfilehost.com/?w=files&flid=22348
Thanks