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here you can find how the Galaxy Tab is constructed :
http://www.ifixit.com/Teardown/Samsung-Galaxy-Tab-Teardown/4103/1
and intrestingly here there is the datasheet of the wifi/bt/fm chip:
http://pdf.eccn.com/pdfs/Datasheets/Broadcom/BCM4329.pdf
as you can see it got fm support and not only a receiver but also a transmitter meaning that implementing support at kernel level you could listen your mp3 or whatever you want on your car radio!
it got double simultaneous stereo bt output support ! wow
as you can see bt spec are about 2.1+edr and not 3.0 ... why?
cause bt3.0 is simply a bt2.1edr+wifi support for large files...so hardware is the same , only software support is needed for 3.0!
you can see the collaborative support bt+wifi described inside the datasheet and even wimax support!
I am interested in knowing if it is possible to power a portable hdd from the tab. I recently tried to plug my portable 1tb usb powered hdd into the tab via a usb to micro adaptor I got on eaby. It all connects up, however there is not power to the drive. I wonder if any tech guys who break these things down would know if there is a switch or program that would make this possible. This way, I can have 1 tb of vids and apps instead of 16gb on an sd card.
dubie, I have already answered this question in your thread about the matter, and even went as far as to explain WHY it will not work. Please do not hijack other's threads, especially for info that was answered in your own thread about the matter.
On another note, cheers for the links Triplex Good to see the innards of our tab hehe.
just a quick OT answer to dubie...
usb host function is not supported from the tab at the moment but this is not the only problem.
to work properly an external usb 2.5" hard drive needs almost 500mA, it doesn't need (the best one!) that much of juice when working but when starting to spin it needs double the mA cause there is a peak just as it happens for car battery where specs are different for start amperage (peak) and continuos one.
galaxy tab can't provide 500mA, better can't provide at all cause the usb is not a feeded one type.there are phones and tabs where the usb works as an host but they needed an external power supply to feed the hard-disk if you want to connect one.usb host on mobile stuff is just there for static memory, pendrives,external hid peripherals.probably some newer ssd could work good too.
Other than repair and information, are there any mods that can be done by taking one of these apart?
I know there have been threads in the past about the Nexus 4 not being able to support outputting audio over USB, but now that stock Android 5.0 supports it, can the Nexus 4 do it?
I'm using the factory 5.0 images and I have an external DAC/amp that I want to use (Fiio e18) that's made for Android, but nothing seems to happen when I hook it up. I've read posts that the Nexus 4 physically can't output power over it's USB, which is fine because the DAC has it's own battery source... but can it at least output the audio?
I started with the stock kernel, but also tried the latest Franco kernel (r214) with no luck. Also, I verified the DAC itself works by using it with my laptop. I'm hoping there's just some hidden setting or patch I need to apply to get it to work... Has anyone else tried this yet?
kerb12 said:
I know there have been threads in the past about the Nexus 4 not being able to support outputting audio over USB, but now that stock Android 5.0 supports it, can the Nexus 4 do it?
I'm using the factory 5.0 images and I have an external DAC/amp that I want to use (Fiio e18) that's made for Android, but nothing seems to happen when I hook it up. I've read posts that the Nexus 4 physically can't output power over it's USB, which is fine because the DAC has it's own battery source... but can it at least output the audio?
I started with the stock kernel, but also tried the latest Franco kernel (r214) with no luck. Also, I verified the DAC itself works by using it with my laptop. I'm hoping there's just some hidden setting or patch I need to apply to get it to work... Has anyone else tried this yet?
Click to expand...
Click to collapse
pls report your findings if you can make it happened!!
i can not help you with your problem but it is something that interest me too. i only can suggest to use a more feature enabled kernel like unleashed or hells core
pls report your findings if you make it work mate!
That's a good idea... unfortunately no dice with the latest unleashed kernel either (98u). It claims it supports USB OTG, so I was hoping that would be enough, but maybe there's more that needs to be done.
kerb12 said:
That's a good idea... unfortunately no dice with the latest unleashed kernel either (98u). It claims it supports USB OTG, so I was hoping that would be enough, but maybe there's more that needs to be done.
Click to expand...
Click to collapse
one thing that you might not know. nexus 4 does support usb otg BUT cannot provide electricity via usb. you must use a y cable and provide external power so you it might not be possible to use your DAC!
Thanks, I did know that, but I figured that since my DAC is self-powered (it has its own battery) that I wouldn't need to do the y-cable trick.
Worth a try though, I'm going to order one and see if I can at least get regular USB OTG to work. Maybe once that's working it'll be easier to troubleshoot the audio.
Just wanted to update, I got the Y OTG cable so I could have external power at the same time... but still doesn't work. This is with stock 5.0.1 and unleashed 98u kernel. I went into Synapse and enabled the OTG setting as well. DAC doesn't get recognized, and I tried a few free apps that are supposed to do OTG checks, but they all came back that nothing is attached.
Usb otg is one thing and uab audio out is another. USB otg means that you can connect an USB stick or external hdd to your phone ( with or without external power) USB AUDIO OUT need special circuits from your internal Dac to the USB. If those are not implemented you will never have USB audio out. This is something witch depends on the manufacturer ( S4 mini with snapdragon 400 don't work with USB otg or USB audio out, htc mini 2 M8 works perfectly with fiio E18 as a audio surce for external DAC). So if you really need USB audio out please next time do your homework and read before buying a phone. P.S. Htc mini 2 M8 has the best audio ever and really you don't need an external dac. If you need more power just use your fiio as an amplifier with your phone.
Maybe you could find for your phone a apecial kernel modified for better audio experience. Flash that and use your headphones.
Good luck!
Thanks, yeah I don't need usb audio out... I've had the phone for over 2 years and I still really like it, so no plans on getting a new one just for this.
I believe it's physically possible to do audio out on the N4... I've seen random posts about people getting it to work, but they've all been on custom ROM's based on 4.4.x stuff. I'd really rather not try to reproduce that since 5.0 is running so much better on my phone, and I was just hoping with the new native Android support it might work out of the box. But alas, it looks like google locked down 5.0 on the N4 - even USB OTG storage doesn't work unless you put a custom kernel like unleashed on.
In the meantime, I've just been using it as a headphone amp like you suggest and it's a big improvement.
Hi all,
I'm going a bit insane here, for months I've been trying to figure out a solution to get my Nexus 7 Grouper to work with an OTG adapter.
I've tried all kinds of ROMs, Kernels, you name it, I've tried it.
I'd like some help, a point in the right direction, I'd really like to have this option on my tablet, it would help me a great deal, I need it to download pictures real time from a camera.
Right now I have DU 4.4.4 vs 8.2 - official installed on it, this doesn't seem to support it either.
Maybe there's a problem with my OTG adapters, I have two, because neither of them seem to make proper contact (please correct me if I am mistaking), because if I connect a mouse to it, it doesn't light up. But they work fine on my Sony Xperia phone.
Any advice is welcome.
Really? No one?
It's the cable. My OTG works fine on stock Lollipop.
Cable Matters (2-Pack) Micro-USB 2.0 On-The-Go (OTG) Adapter
Via Amazon. I use an old Apple mouse and keyboard.
I'm on Lollipop, rooted, and I'm using Stickmount with a couple of OTG adapters. They work fine with any external memory I've attached. Stickmount now allows unmounting without the persistent notification to mount mass storage it used to display.
Hi guys,
I am using a pass through-powered USB-C hub through which I am using external USB devices (keyboard and mouse), as well as a larger monitor for screen mirroring. This works reasonably well. However, the USB-C hub, while powering the external devices, does not charge the phone while it is in OTG host mode (which is needs to be in order for the external devices to work). This leads to the problem that the phone is slowly draining when external devices are used to play games, work on spreadsheets, or whatever. So, I was wondering why this is and found that OTG host mode charging seems to be restricted by the kernel. Very annoying!
Looking around I found that there are custom kernels for other phones that tackle this problem (examples here (OnePlus One) or here (for Xperia Z5 compact)). Which leads me tot he question: is there any known solution for this problem for the OnePlus5? Is there a custom kernel supporting charging in OTG host mode? Is there any other work-around that would allow me to power my device while using OTG?
Thanks!
PS: My device is rooted but is otherwise running on stock kernel and ROM.
Froschface said:
Hi guys,
I am using a pass through-powered USB-C hub through which I am using external USB devices (keyboard and mouse), as well as a larger monitor for screen mirroring. This works reasonably well. However, the USB-C hub, while powering the external devices, does not charge the phone while it is in OTG host mode (which is needs to be in order for the external devices to work). This leads to the problem that the phone is slowly draining when external devices are used to play games, work on spreadsheets, or whatever. So, I was wondering why this is and found that OTG host mode charging seems to be restricted by the kernel. Very annoying!
Looking around I found that there are custom kernels for other phones that tackle this problem (examples here (OnePlus One) or here (for Xperia Z5 compact)). Which leads me tot he question: is there any known solution for this problem for the OnePlus5? Is there a custom kernel supporting charging in OTG host mode? Is there any other work-around that would allow me to power my device while using OTG?
Thanks!
PS: My device is rooted but is otherwise running on stock kernel and ROM.
Click to expand...
Click to collapse
Nope and it won't, I have a thread in the themes and apps section about targus display docks as after much research I found that it is the only way to reliably mirror your screen in real time with no latency issues, with that being said there is no charging whilst this is in use, I wish there was but there isn't.
It's possible I suppose that power could flow both ways but after all the time that I've spent looking, I'm yet to find it.
I've tried over 10 docks, splitters, dual output cables. Devices with power input, none have charged the device.
I think the nature of the way display link works it just doesn't allow it.
dladz said:
Nope and it won't, I have a thread in the themes and apps section about targus display docks as after much research I found that it is the only way to reliably mirror your screen in real time with no latency issues, with that being said there is no charging whilst this is in use, I wish there was but there isn't.
Click to expand...
Click to collapse
Yeah, I saw your thread. In fact, I was just about to post in there another - much cheaper - device I'm using for reliable mirroring.
Edit: actually I posted it in the 'usb-c to HDMI adapter'-thread, in which you were also quite active.
dladz said:
It's possible I suppose that power could flow both ways but after all the time that I've spent looking, I'm yet to find it.
I've tried over 10 docks, splitters, dual output cables. Devices with power input, none have charged the device.
I think the nature of the way display link works it just doesn't allow it.
Click to expand...
Click to collapse
Yeah, it is definitely possible (see the threads I've linked). But it depends the kernel allowing it, from what I understand. Anyways, if nobody has come up with a kernel allowing for it, then it won't happen I guess.
Froschface said:
Yeah, I saw your thread. In fact, I was just about to post in there another - much cheaper - device I'm using for reliable mirroring.
Edit: actually I posted it in the 'usb-c to HDMI adapter'-thread, in which you were also quite active.
Yeah, it is definitely possible (see the threads I've linked). But it depends the kernel allowing it, from what I understand. Anyways, if nobody has come up with a kernel allowing for it, then it won't happen I guess.
Click to expand...
Click to collapse
With displaylink technology it's not possible.. with previous hardware ie the HTC 10 it was but only with standard usb to hdmi converters, displaylink doesn't allow it.
In regards to usb OTG cables, I've never tried.
dladz said:
With displaylink technology it's not possible.. with previous hardware ie the HTC 10 it was but only with standard usb to hdmi converters, displaylink doesn't allow it.
In regards to usb OTG cables, I've never tried.
Click to expand...
Click to collapse
Oh.. so then there is a second limitation based on DisplayLink. Aside of the kernel.
Well. Luckily the OP5 has great battery life. A few hours of activity is no problem. Especially since I run everything through a USB-hub with its own power source anyway.
Froschface said:
Oh.. so then there is a second limitation based on DisplayLink. Aside of the kernel.
Well. Luckily the OP5 has great battery life. A few hours of activity is no problem. Especially since I run everything through a USB-hub with its own power source anyway.
Click to expand...
Click to collapse
From my tests I've found the hub being powered makes no difference to the drain of the battery on the phone..
The OnePlus has got amazing battery life, definitely something I need in my life for my next device..
In regards to charging whilst using a displaylink honestly my comment is based on the testing of around 20 different devices and none of them allow charging, if it exists I personally haven't come across it.
A shame but not the end of the world..
Lava - Simulcharge
For what it's worth, I had a difficult time finding a device which supports simultaneous host charging as well. As it turns out, there is a device called the Simulcharge from Lava Computer that works quite well on Samsung tablets. I'm not sure if it will work with other Android devices: (unable to post link - search amazon).
It's a bit expensive but it works great!
Is there a cheap displaylink that works with the OP5 that also has a USB port for peripherals?
Sorry to revive this thread from the dead, but I'm also looking for a way to connect both charger + USB-OTG at the same time. I have a USB C hub that's capable of that, it works perfectly fine on my Oneplus 7. However on the OP5 it's either OTG or charging.
Did you ever found a way?
XlAfbk said:
Sorry to revive this thread from the dead, but I'm also looking for a way to connect both charger + USB-OTG at the same time. I have a USB C hub that's capable of that, it works perfectly fine on my Oneplus 7. However on the OP5 it's either OTG or charging.
Did you ever found a way?
Click to expand...
Click to collapse
Hi ! I have a custom app specifically developped for OP6 and have the issue you have on OP5 : otg OR charching. I have seen Krieg Kernel enables it on OP5. Have you tried it ?
I'm looking for some Kernel for OP6 but nothing seems to answer my need....
romanarteefact said:
Hi ! I have a custom app specifically developped for OP6 and have the issue you have on OP5 : otg OR charching. I have seen Krieg Kernel enables it on OP5. Have you tried it ?
I'm looking for some Kernel for OP6 but nothing seems to answer my need....
Click to expand...
Click to collapse
Hi! I am looking for exactly the same thing for OP6. Hope there's something now
Froschface said:
Hi guys,
I am using a pass through-powered USB-C hub through which I am using external USB devices (keyboard and mouse), as well as a larger monitor for screen mirroring. This works reasonably well. However, the USB-C hub, while powering the external devices, does not charge the phone while it is in OTG host mode (which is needs to be in order for the external devices to work). This leads to the problem that the phone is slowly draining when external devices are used to play games, work on spreadsheets, or whatever. So, I was wondering why this is and found that OTG host mode charging seems to be restricted by the kernel. Very annoying!
Looking around I found that there are custom kernels for other phones that tackle this problem (examples here (OnePlus One) or here (for Xperia Z5 compact)). Which leads me tot he question: is there any known solution for this problem for the OnePlus5? Is there a custom kernel supporting charging in OTG host mode? Is there any other work-around that would allow me to power my device while using OTG?
Thanks!
PS: My device is rooted but is otherwise running on stock kernel and ROM.
Click to expand...
Click to collapse
Did you ever find a solution to OTG plus charge, perhaps via a different ROM? Thanks.
Hello y'all,
I recently discovered by accident that when I tried plugging in my PS4 controller through the USB-C port the phone was showing headphones icon in the status bar. And sure enough, the audio wasn't coming from the phone. So can anyone test this out since I don't have any USB-C headphones, but I always wanted them.
Thanks to anyone participating in this test.
Write your results here.
Audio through USB-C works at least since Android 8.1. I've USB-C mini DAC (Hidizs Sonata HD) and works perfectly. Also I tested Nobsound NS-10g USB input via USB host adapter and also works. So, isn't a new feature of 9.0 update, if you are thinking so.
I've been using fulla schiit 2, usb audio works on 8.1
xsam123 said:
Audio through USB-C works at least since Android 8.1. I've USB-C mini DAC (Hidizs Sonata HD) and works perfectly. Also I tested Nobsound NS-10g USB input via USB host adapter and also works. So, isn't a new feature of 9.0 update, if you are thinking so.
Click to expand...
Click to collapse
Actually yes, I was thinking it's new because when I tried my friends USB C headphones it didn't respond.
But thank you for clarifying me! Your response is appreciated.
xsam123 said:
Audio through USB-C works at least since Android 8.1. I've USB-C mini DAC (Hidizs Sonata HD) and works perfectly. Also I tested Nobsound NS-10g USB input via USB host adapter and also works. So, isn't a new feature of 9.0 update, if you are thinking so.
Click to expand...
Click to collapse
Does your Hidizs Sonata work also with Android Pie? I've just got Sonata II and it works only if I connect it within one minute after reboot. After that the phone ignores it and acts like nothing has been connected (but the phone is powering the dongle as I see increased draw in logcat and hear a very faint click in the headphones). So if I want to listen via Sonata, I must connect it first and reboot the phone, then it works perfectly. I tried all the available firmwares for Sonata, it does the same with all of them. With the PC or Huawei phone it works whenever I connect the dongle, so it most probably isn't faulty USB DAC, but rather something in the phone. Also I'm missing the option "Audio source" in the USB options in the phone's settings completely, if it makes any difference/sense.
_mysiak_ said:
Does your Hidizs Sonata work also with Android Pie? I've just got Sonata II and it works only if I connect it within one minute after reboot. After that the phone ignores it and acts like nothing has been connected (but the phone is powering the dongle as I see increased draw in logcat and hear a very faint click in the headphones). So if I want to listen via Sonata, I must connect it first and reboot the phone, then it works perfectly. I tried all the available firmwares for Sonata, it does the same with all of them. With the PC or Huawei phone it works whenever I connect the dongle, so it most probably isn't faulty USB DAC, but rather something in the phone. Also I'm missing the option "Audio source" in the USB options in the phone's settings completely, if it makes any difference/sense.
Click to expand...
Click to collapse
Yes, my unit works perfectly with Android Pie, stock and custom ROM. What build are you using? Maybe something is corrupt
Enviado desde mi Mi A1 mediante Tapatalk
xsam123 said:
Yes, my unit works perfectly with Android Pie, stock and custom ROM. What build are you using? Maybe something is corrupt
Click to expand...
Click to collapse
I'm no stock Android Pie, tried the adapter with February patch. Unfortunately adapter just stopped working with all of my devices (got really hot and then died completely), so can't verify with March update.
I'm going to visit an Apple store and try their USB-C - 3.5mm adapter, it is being said to be of a very high quality and is just 10USD/EUR and available locally, so I don't have to wait more than a month for delivery of another Hidizs from China.
Apple dongle behaves the same. Working when connected within ~1 minute after reboot, won't work on later (re)connection. I tried a different kernel to no avail. Would love to know why is it happening.
Edit: it happens that I'm forgetful, see explanation below
Oh my.. I'm stupid guys, I totally forgot that I configured recommended workaround "disable USB host" for 70000.USB wakelock couple of months ago. It was running one minute after boot via Tasker, no wonders I was experiencing this. Dongle works completely fine now (except of volume buttons on the Apple DAC). Sorry for stupid confusion.