Develop Bugs

USB Host mode

ADMIN EDIT:
adq is also a member here, direct link to his site about this:
http://adq.livejournal.com/95689.html
for dev's a patch is available to patch the kernel to enable this
It looks that one there are some guys that succeed to use the USB in host mode on an Android device ....
issue 738 on code.google http://code.google.com/p/android/iss...ummary%20Stars
Implementing the USB on the Go feature on a phone, will allow you to
conect to the phone:
- regular keyboards - imagine how easy you enter contacts, edit notes
and other text information into your phone when you go to home / work
and connect the keyboards from the computers you are using there.
- regular mice
- flash drivers, card readers, external hard drives, foto camera
- printers - so you can easily print the photos you make wit the built
in camera, and office documents you edit from the phone.
- scanners
- monitors (with a USB-to-VGA adapter, like the HTC Advantage X7510
does)
- WiFi cards
- USB ethernet cards - this would be an imensely great feature.
Because with propper software you can test an ethernet port (ping,
etc), even test UTP cables - like the expensive Fluke devices do. Just
imagine how convenient is to test a network without taking the laptop
with you and without buying expensive network testing tools.
- TV Tuners
- another phone that will stay in "slave mode"
- web camera - maybe it's a silly idea, but hey, why not?
- pen tablets
- USB hubs - so you will be able to connect all the above peripherals
to the phone in the same time.
Click to expand...
Click to collapse
for HTC Hero
http://adq.livejournal.com/
This guy succeed to attache a real keyboard, a real mouse that is used as a trackball and a external USB storage device!!
Also he is using a battery USB hub to resolve the charging needs of some of the devices.....
how to create the cable , and some tests for Motorola Droid...
http://www.tombom.co.uk/blog/?p=124

Whoa, nice find. I didn't think this was even possible. I've been telling anyone who asked about it to keep dreaming. My bad.

yes..I also wanted to do this since I bought my first WM phone .... someone else tried this ?

instead of creating that patched cable do you think that a battery hub like this one that can change the gender of the USB, can be use instead ?
http://www.everfast.com.hk/catalog/usb-hub-battery-charger-usb-hub-4-ports-p-138.html
PS: it has also battery based charging capabilities

That's an interesting thought, although I don't have anything near the technical knowledge of this type of thing to say for sure. Your guess is as good as mine.

craig0r said:
That's an interesting thought, although I don't have anything near the technical knowledge of this type of thing to say for sure. Your guess is as good as mine.
Click to expand...
Click to collapse
i'd say it should work with this. but i am afraid we'll have to wait until someone actually implements this somehow...
can someone pleeeease implement this somehow?

Keep in mind that If i read this correctly, this patch will disable usb device mode (i.e. wont be able to access the sd card as a mass storage device anymore and HTC Sync will be disabled as well).
Edit: At least for the time being. The dev seems keen on getting the device-mode/ host-mode drivers to cooperate.

alt236 said:
Keep in mind that If i read this correctly, this patch will disable usb device mode (i.e. wont be able to access the sd card as a mass storage device anymore and HTC Sync will be disabled as well).
Edit: At least for the time being. The dev seems keen on getting the device-mode/ host-mode drivers to cooperate.
Click to expand...
Click to collapse
Yeah, it shouldn't be too hard to implement a software switch.

On the other blog they propose this cables :
http://www.brightonnet.co.jp/english/product/other/bbm-wireel.html
http://www.overstock.com/Electronic...d=123620&fp=F&ci_src=14110944&ci_sku=12436069
http://cgi.ebay.com/Micro-USB-Host-...Accessories?hash=item3a57229ee9#ht_5104wt_939
PS : I would like to buy one of this cables
PS2: I see on that e-bay link that this is already working on various linux powered mobile devices.

Hi, thanks for posting this here
Yeah, I'm just reading how the OMAP USB drivers implement the software switch just now to see how best to do it; right now looks like three drivers - two actually implementing the host/device mode, and one stub mediating which one is actually active.
I'm hoping to have something along these lines working next week.

thats great news mate will u posting your cabel guide to also this should be added i think to the custom roms (or at least a option the the kitchen tool)

There has been some progress:
http://adq.livejournal.com/
http://groups.google.com/group/android-kernel/browse_thread/thread/b871a27624f69b85

is it still not ready to be implemented even in experimental ROMs?

How should I install that? From Recovery? Like a Rom

is there any update on this? I would love to be able to read my SDCARD on my digital camer just by linking in with a usb cable

USB devices not detected by USB HOST
I am developing application to detect my printer by NOVO 7 Paladin(Android 4.0).
By USB HOST CONTROLLER application(which is available in market) the printer/mouse/keyboard is detected. But in my application(Written in java) these devices are not detected
With the reference of below link this application is developed
developer.android.com/guide/topics/usb/host.html
My Code Sample
mUsbManager = (UsbManager)getSystemService(Context.USB_SERVICE);
HashMap<String, UsbDevice> foundDevices = mUsbManager.getDeviceList();
Iterator<UsbDevice> iterator = foundDevices.values().iterator();
if (foundDevices.size()>0)
{String old = textv.getText().toString();
textv.setText(old +" foundDevices ");
}

[HACKING] USB Host Driver For Ext HDD

Samsung's press release for the processor confirmed USB host capabilities. But it doesnt look like that functionality is exposed at an OS level yet.
As done similarly for Nexus One, will it be possible to write up a driver or something like that for Samsung Galaxy S?
It would be too good to have an external HDD connected to this device!!! (That means, practically unlimited storage!!)
I know that there could be problems with power required to spin a drive, but my Creative Zen Vision M (60 GB) player had USB host (badly implemented) capabilities - and it was able to spin hard drives.
Is it worth a try with SGS?

What?? Nobody interested?

Was having a look for this same answer. Hope things have progressed a bit.

SGS USB Host Documentation
Guess What!! I was going through the bundled "Documentation" along with the SGS i9000 code and I found this!!
Code:
S3C24XX USB Host support
========================
Introduction
------------
This document details the S3C2410/S3C2440 in-built OHCI USB host support.
Configuration
-------------
Enable at least the following kernel options:
menuconfig:
Device Drivers --->
USB support --->
<*> Support for Host-side USB
<*> OHCI HCD support
.config:
CONFIG_USB
CONFIG_USB_OHCI_HCD
Once these options are configured, the standard set of USB device
drivers can be configured and used.
That is very encouraging. But I haven't done any kernel compiling (hell, I haven't even done any Android coding, this being my first Android phone!!). So its gonna a be a while before I can put this to a good use.
Now, I am not sure if this is just "Host" or if it would support "OTG" also. I found the documentation on S5PC110 [Dev Sheet] a bit confusing also. It does show that the microprocessor has both HOST and OTG capabilities, but I am not sure to what the USB port has been wired to.
May be somebody can put this to a good use.

Well if this as easy as it sounds, it beats any logic whatsoever, why Samsung didn't put in this functionality out-of-the-box with SGS. This device seems severely constricted in features which the S5PC110 chip init readily supports.

samsung are idiots lol, hopefully it works tho

Are there any apps which would tell us what exact piece of hardware we have in an Android phone?

You have a s5pc110 processor, in the Galaxy S.
Any talk about usb host drivers (for that processor / s5pc series) would probably be done on the linux-samsung-soc mailing list.

+1
Really looking for this feature ,,,, very helpful ....
thanks for starting this topic ....

What do people use this feature for? I guess I am having a hard time envisioning why this would be useful on a phone.

brunes said:
What do people use this feature for? I guess I am having a hard time envisioning why this would be useful on a phone.
Click to expand...
Click to collapse
You could connect USB memory disks , external HDDs ,external camera and so on to your Galaxy S and browse files ...... very very helpful...

Any one know how to use this feature? I badly wanna connect USB keyboard to my SGS.

Anyone? Sorry for spaming, but i really need it. Maybe someone have got some links explaining how to enable usb host? I'm not a dev. but i can try do something, anything to get this to work!
What we have to do? Some drivers, or new kernel?
Right now I'm going to buy 2-female USB adapter. Please, reply!

19arek93 said:
Anyone? Sorry for spaming, but i really need it. Maybe someone have got some links explaining how to enable usb host? I'm not a dev. but i can try do something, anything to get this to work!
What we have to do? Some drivers, or new kernel?
Right now I'm going to buy 2-female USB adapter. Please, reply!
Click to expand...
Click to collapse
If you are this desperate why not just use a bluetooth keyboard...

Because is very expensive.

Has it been officially confirmed that the Galaxy S can't do USB host ?
This would be an amazing feature on an already amazing device.

From what I know a about jpc rom it now installs a cdrom drive when plugged in to windows. Seems to that there's soms sort of host capabilities are built in
Sent from my GT-I9000 using XDA App
Sent from my GT-I9000 using XDA App

samsung source code
Hi!
I too find this feature very useful. However, I found little information about it on the net. So I started digging through the source code provided by Samsung (GT-I9000_OpenSource.zip). From this and from the specs of the chip (S5PC110_EVT1_UM10.pdf), I take it that the phone does support USB host. The problem is, it can only do either client or host, not both at the same time. Now here is where it gets tricky.
The Samsung kernel source is not as neatly separated into independent modules as you would expect from a Linux kernel. The USB client stuff (usb-storage, modem...) is connected with the driver that checks for cable plugging and unplugging which in turn is connected with the driver for the voltage regulator that starts charging the battery and supplies the cpu with power as soon as you connect the phone to your computer. Consequently you can't just build the USB client stuff as a module to be able to unload it and load the USB host module instead.
I have started to write a workaround for that, separating these interconnected drivers from each other. The easiest point to take it apart seems to be the driver of the voltage regulator. It has the fewest external dependencies. It does, however, pose the problem that the phone won't charge if something goes wrong...
Well, I got as far as being able to compile the source with the USB client stuff as bunch of modules and the independent part compiled into the kernel. I got that flashed on the phone. It boots, it doesn't blow up, and USB client is disabled. So far, so good.
Problem is, the client modules won't load. I don't know why, yet. Having to work with the on screen keyboard and a terminal instead of getting a shell via "adb shell" isn't helping either...
Well. That's as far as I got today.
Suggestions? Comments?

Woah!!! You've gone forward way farther than I have!!
I took a lot of time trying to get around to a proper working kernel itself! :-( I am a complete noob at this - SGS being my first phone. [Not to mention the fact that I almost got my phone bricked once and got into infinite boot sequence on another instance.]
I had been trying to add modules built-in into the kernel itself - without making any code changes. I find when I plug-in my Mircro USB OTG cable - dmesg gives out 4 lines of log entries -
Code:
[s3c_usb_cable]done_clk_enable
[s3c_usb_cable]done_udc_reinit
[s3c_usb_cable]done_udc_enable
FSA INTR = dev1 : 0x80, dev2 : 0x0, Attach : 0x1
Of the above 4 lines - for the first 3 I was able to find the code in the file -
Code:
<Path_to_source_code>/GT-I9000_OpenSource/GalaxyS_Kernel.tar/GalaxyS/linux-2.6.29/drivers/usb/gadget/s3c_udc_otg.c
Now these entries come up only when I connect my OTG cable. Normal cable does not give this. May be the SGS can do both OTG and Device mode at the same time?
To understand more of this I tried to enable DEBUG. But apart from getting in to infinite boot loop, I was not able to move ahead much.
Another interesting thing that I noticed was that -
Code:
CONFIG_USB_S3C_OTGD=y
is set in the normal/unmodified .config file obtained from OpenSource website of Samsung.
From what I understand, this means that the OTG module is directly compiled and linked in to all of our kernels. But for some reason, it is not working as expected.
Well I am stumped!!! May be I will look more in to this during this weekend.

coooolboyz said:
Samsung's press release for the processor confirmed USB host capabilities. But it doesnt look like that functionality is exposed at an OS level yet.
As done similarly for Nexus One, will it be possible to write up a driver or something like that for Samsung Galaxy S?
It would be too good to have an external HDD connected to this device!!! (That means, practically unlimited storage!!)
I know that there could be problems with power required to spin a drive
Is it worth a try with SGS?
Click to expand...
Click to collapse
If you used an SSD you wouldn't have to worry about power to spin it up Although I don't think I've seen a USB one anywhere...
Best of luck, this would be an awesome and very useful feature to have!

[Q] Burn ISO to USB

Ok, this may be more of a general android question rather than device specific. I have several ISO files for various operating systems that I carry around on my memory card. Is there a way within Android ( likely similar to a dd command ) that I could burn the image to USB key? Im looking for a way to fix/repair computers on the go without needing to carry around my laptop ( Or download new / test releases and live boot them so to speak ).
Before you ask, yes I have a kernel that supports USB OTG and i can read/write to my usb key within my phone already. I was looking on the market for something similar to "live usb creator" but had no luck.
This is one of the only threads ive ever started and I do look around first. The information given could help many out if there is such a way The GS2 technically has more processing power than my n450 powered netbook It would be nice to actually utilize it as such.

pyraxiate said:
Ok, this may be more of a general android question rather than device specific. I have several ISO files for various operating systems that I carry around on my memory card. Is there a way within Android ( likely similar to a dd command ) that I could burn the image to USB key? Im looking for a way to fix/repair computers on the go without needing to carry around my laptop ( Or download new / test releases and live boot them so to speak ).
Before you ask, yes I have a kernel that supports USB OTG and i can read/write to my usb key within my phone already. I was looking on the market for something similar to "live usb creator" but had no luck.
This is one of the only threads ive ever started and I do look around first. The information given could help many out if there is such a way The GS2 technically has more processing power than my n450 powered netbook It would be nice to actually utilize it as such.
Click to expand...
Click to collapse
From android OS I have no clue bro. However, you can try UnetBootin. This program will take an ISO and burn it to a USB drive that will boot. I do it all the time with Linux distros or Windows repair disks. Good luck

KillaHurtz said:
From android OS I have no clue bro. However, you can try UnetBootin. This program will take an ISO and burn it to a USB drive that will boot. I do it all the time with Linux distros or Windows repair disks. Good luck
Click to expand...
Click to collapse
Hi there. Thanks for the reply. I've used UnetBootin actually. I'm really looking for an equivalent that will run on android OS lol.
Sent from my SGH-T989 using xda premium

very interesting new App potential i see here
i could myself find this useful
to "burn" a bootable USB key to fix/boot repair a dead PC or something along the lines
so, the challenge will be to port over any of the Linux tools over to Android to get it working, shouldn't be too hard
unfortunately i do not have the spare time to get into this yet
but any DEV with free time wanting a fun challenge, this is an interesting one to play with

AllGamer said:
very interesting new App potential i see here
i could myself find this useful
to "burn" a bootable USB key to fix/boot repair a dead PC or something along the lines
so, the challenge will be to port over any of the Linux tools over to Android to get it working, shouldn't be too hard
unfortunately i do not have the spare time to get into this yet
but any DEV with free time wanting a fun challenge, this is an interesting one to play with
Click to expand...
Click to collapse
I'm looking into our available commands using terminal emulation So far its looking promising ( more like a cat command but still ).
If there are any Devs out there reading this, it would be a nice tool to have ;-)
In theory it should be very possible. Also, I was thinking about the possibility of porting over qtparted. Most of us techs have external USB to SATA/IDE adapters. Imagine pulling a laptop drive, wiping virii, repairing using scandisk, repartitioning borked disks, ect. Great ideas :-D This phone has more processing power than most netbooks in the market ( and actually better gpu capability too lol ). Why not put them to use !
Sent from my SGH-T989 using xda premium

would be nice
I would love to see something like this. my pc hard drive has failed, New drive acquired but no win or ubuntu boot disks. If I could just put a boot on my spare 4gb micro ad... only have the phone for web access

hi
Yes I've wanted to do the same thing on a android tablet android tablets are missing out on such software iso burning and CD DVD writer tht connects too the tablet would be great the only thing stopping me from converting from Windows to android tablet with keyboard is this problem . Google would acutely make a killing if programmes and hardware like this was out for tablets .

Same here I have a tablet with that kernel that I can connect USB drives to but no burning software gutted

Try DroidDrive.
I'm going to test if it can boot iso's too.
Normally, it can boot img's.

Yes...I too need such apps like rufus on phone to create bootable pendrive
---------- Post added at 08:03 PM ---------- Previous post was at 08:00 PM ----------
Droid drive can only be used to boot pc from phone, but it can't be used to make pendrive bootable, and that is actually what we need.

From Terminal Emulator
dd if=/path/to/iso of=/block/device/id (for flash drive)
The only problem is that this method uses the entire flash drive.
Oh, and finding the block device id of your otg flash drive on android seems to be problematic.
Haven't tried it yet...
but it works on linux, and busybox
provides dd to android so...
Anyone have a way to find block device id for a usb otg flash drive?

ISO to USB on Play Store does this with no root

Am I missing something. I've been looking for hours and the app mentioned is very suspect and unreliable. I need create windows boot aswell whether from usb of phone itself.
Can't use root option app either due to SM-S908W as my phone.
Help pls!!

Bump

Bada 2 USB host feature

A new tutorial has been upload recently, seems that bada 2.0 has an interesting API like the new android one, allowing to control a generic device/accessory through the usb cable interface of the phone, watch this video:
http://www.youtube.com/watch?feature=player_embedded&v=yb_IghbBoP0
and the tutorial:
http://developer.bada.com/article/Developing-a-bada-Accessory
in the requirements section of the article they reports:
-bada device (Wave 3) and its USB cable -> this means there is an hardware limitation for wave s8500 and s8530??

Sure it needs a special hardware but im not sure even wave 3 has the hardware
and this article is not about usb host feature

r_22009 said:
Sure it needs a special hardware but im not sure even wave 3 has the hardware
and this article is not about usb host feature
Click to expand...
Click to collapse
have you read/understood it?
the article is strictly about usb host feature application in bada, and at the beginning of the article, second paragraph:
"...
As the development environment, you need the following:
Latest bada SDK
bada device (Wave 3) and its USB cable
Arduino Mega ADK
..."
edit: in the first screenshoot the phone is a wave II with bada 2.0, so the answer seems 'yes, no hardware limits..'

No the answer is that this article is about controlling some accessories like arm devices ,robots and like these via bada phone
so it doesnt need a special hardware
but be sure that usb host need special HW that even wave 3 doesnt have it
you can see in gsmarena
for instance SGS2 has it

r_22009 said:
No the answer is that this article is about controlling some accessories like arm devices ,robots and like these via bada phone
so it doesnt need a special hardware
but be sure that usb host need special HW that even wave 3 doesnt have it
you can see in gsmarena
for instance SGS2 has it
Click to expand...
Click to collapse
mm.. sorry maybe you're right... I said usb host, but I was not thinking about the native ability of the os to recognize e.g. external hard drive (this perhaps, power supply issues excluded, is also software-dependant http://forum.xda-developers.com/showthread.php?t=1468531) but about the general capability to send and receive messages on the usb serial interface from the bada application level.
Anyway the usb host function seems that have to be integrated on the external device..
but this function provided with bada 2 API can't be related to the usb otg function that it's supported by wave I, II, III (http://forum.xda-developers.com/showthread.php?t=1101954)?

Question Tablet as phone's second screen

Hi all,
I have a Galaxy TAB 10.1 2014 and a Oneplus 9 PRO in my hands and I would like to use the TAB as OP9PRO's second screen.
As I'm going to use the phone to play games, I really don't want to use any WI-Fi app to connect TAB and phone as they all have a terrible lag.
What I would like to do is to connect the TAB and phone by USB cable only.
Do you know a mirroring app that allow me to do that ? ( already tried Screen Mirroring, AirDroid, Apowermirror and tey all doesn't work via USB....)
​
Thanks to all

I suggest you find out if both your devices can be connected with a special OTG cable.
If it is possible, you will run adb on the tablet with termux and then get the image from the phone on the tablet, just as easily as on the PC.

Hi and many thanks for your reply! It sounds good.
Non I'm going to looking for such a cable. OP9PRO side should not be a problem but I donato know about TAB as this is an old device with a micro USB only....Anyway let's see.....
In the meantime, can you kindly give me some tips about Termux as I already have hard about that but I have never used it. Only used ADB commando via PC.
I mean, which commands should I use in order to mirror the phone ?
Mano thanks again !

Jack Droid said:
Hi and many thanks for your reply! It sounds good.
Non I'm going to looking for such a cable. OP9PRO side should not be a problem but I donato know about TAB as this is an old device with a micro USB only....Anyway let's see.....
In the meantime, can you kindly give me some tips about Termux as I already have hard about that but I have never used it. Only used ADB commando via PC.
I mean, which commands should I use in order to mirror the phone ?
Mano thanks again !
Click to expand...
Click to collapse
USB C to micro USB adapter...

Maybe something like that ?
https://www.amazon.it/PAXO-Scomparto-59/dp/B08LNK3L7Q/ref=sr_1_5?crid=2S7IPYIC3UAHU&keywords=cavo%2Botg%2Btype%2Bc%2Bmicro%2Busb&qid=1681836987&sprefix=cavo%2Botg%2BUSB%2BC%2BMICRO%2Caps%2C109&sr=8-5&th=1

Better in english :
https://www.amazon.de/dp/B08KGPVKF8

If that cable it's ok, as there is a micro USB the max transfer rate is 480 Mbit/s so the max possible resolution will be 1080p 30 fps ( or 60 fps ) ? Correct ?

Jack Droid said:
Better in english :
https://www.amazon.de/dp/B08KGPVKF8
Click to expand...
Click to collapse
OTG cables are thick and rigid, so it should not be shorter than 50 cm.
You did not give the exact name of the model.
Phone Finder results - GSMArena.com
www.gsmarena.com

‎

ze7zez said:
OTG cables are thick and rigid, so it should not be shorter than 50 cm.
You did not give the exact name of the model.
Phone Finder results - GSMArena.com
www.gsmarena.com
Click to expand...
Click to collapse
That cable can be 0.5 / 1 / 2 meters as well and it is AWG24 ( so large section ) but is the right cable in term of tech data ? ( that cable is only an example as there are many others on Amazon )
The exact name of the model are Samsung Galaxy TAB 10.10 2014 Edition ( SM-P605 ) and ONEPLUS 9 PRO

I have no idea about the cable until I check it.
I'm using USB3 cables from Microsoft Display Dock HD-500, one is USB-C/USB-A and the other is USB-C/USB-C.
Depending on the device I use, I attach the appropriate adapters to them to match the device slot.

ze7zez said:
I have no idea about the cable until I check it.
I'm using USB3 cables from Microsoft Display Dock HD-500, one is USB-C/USB-A and the other is USB-C/USB-C.
Depending on the device I use, I attach the appropriate adapters to them to match the device slot.
Click to expand...
Click to collapse
Yes, I see. Anyway, the cable is not a big matter. I'll find it.
The main matter is which command should I use into Termux and/or ADB in order to send the image from phone to tablet....
Do you know them ? Or do you know where I could read something about that ?
I'm surfing on Internet but I did not find anything yet....

E.g. scrcpy

Many thanks.
I found this one : https://github.com/Genymobile/scrcpy
It say : This application mirrors Android devices (video and audio) connected via USB or over TCP/IP, and allows to control the device with the keyboard and the mouse of the computer. It does not require any root access. It works on Linux, Windows and macOS
If I have well understood, it seems it works among Android device and PC ( I don't know if it works Android among Android ).....
Anyway, I'll follow this way as it seems very interesting.....

rom1v ( the dev behind scrcpy app ) confirmed that this app only mirror Android device on PC ( Linux, Windows, MacOS ) so it is not solve the matter......
Anyway, thanks for the tip. This could be useful for the future !

itsclevelandbrown said:
try duel, very good
Click to expand...
Click to collapse
If youa re referring to Duet, it works between Android to PC / Mac only but not between Android to Android.....
Thanks anyway for your reply......

Jack Droid said:
(...)
If I have well understood, it seems it works among Android device and PC ( I don't know if it works Android among Android ).....
(...)
Click to expand...
Click to collapse
You wrote that you need an android image in another android, so you need to try the appropriate application on android, not on PC.
scrcpy - Apps on Google Play
This application is android version of Scrcpy
play.google.com

ze7zez said:
You wrote that you need an android image in another android, so you need to try the appropriate application on android, not on PC.
scrcpy - Apps on Google Play
This application is android version of Scrcpy
play.google.com
Click to expand...
Click to collapse
Hi ze7zez,
I had not seen before......
I just found this one https://github.com/Genymobile/scrcpy and I thought it was the only version available....
Infact, Android version linked from you is not released by rom1v but from pkk3345678....
Very interesting......
Many thanks for your super tip !!!
I'm gonna try it and I'll give you a feedback.
Thanks again !