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Card Reader and Other USB devices

I have a quick question. I have TnT lite 2.2 installed on my Gtab. If I plug in a USB thumbdrive, I can find the files on the Gtab. If I use a USB card reader, I cannot see where the files come up. I have gone through every folder, and the reader simply does not show up (yes, with a card in the reader).
Also, do all USB devices work? Where do they show up?
I am used to PC work, so getting used to this tablet is a bit of work

kewldude151 said:
I have a quick question. I have TnT lite 2.2 installed on my Gtab. If I plug in a USB thumbdrive, I can find the files on the Gtab. If I use a USB card reader, I cannot see where the files come up. I have gone through every folder, and the reader simply does not show up (yes, with a card in the reader).
Also, do all USB devices work? Where do they show up?
I am used to PC work, so getting used to this tablet is a bit of work
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Try looking for usbdisk folder either using es file explorer or root explorer. Files from usb disk are in there

New2Android said:
Try looking for usbdisk folder either using es file explorer or root explorer. Files from usb disk are in there
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I tried that folder and it did not recognize the reader. The folder was empty.

kewldude151 said:
I tried that folder and it did not recognize the reader. The folder was empty.
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try and reboot and then plug it in. if it still doesn't work, then maybe it just doesn't read the reader. only reads usb drives directly. it would be in the usbdisk folder btw.

Also keep in mind a lot of card readers (if not all) act like a bunch of drives even when there's nothing installed in them. That's why Windows pre-reserves drive letters for every slot on the gadget.
Readers like that may not work due to lack of proper drivers in Android ? Just a guess.

I don't have a portable SD reader at the moment (time for a DX order, I think). But, I have a microSD reader - one of those pen drives where you can add a microSD to it. That works fine in the VEGAn build, and I believe TnT Lite as well.

Tried the card reader for the CF cards from my camera. Had to plug the cable in 2 times but the card was seen and readable.

NMCBR600 said:
Tried the card reader for the CF cards from my camera. Had to plug the cable in 2 times but the card was seen and readable.
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Was it a dedicated CF card reader or one of the multi readers? I have a multi reader I tried but couldnt get to come up. I am looking into a dedicated reader to see if that works.

It was a dedicated CF reader.

Since there is more than one slot, and Windows treats them as more than one drive, I would assume that one of the slots gets assigned as /usbdisk and the others are ignored. You are probably using one of the slots that is ignored.
Hopefully when we get the source, we can address these kinds of issues.

So essentially to get this to work, one needs to have just a dedicated reader for whatever style of memory card in use?

Cryofix in IRC has said that his 5-1 card reader worked. USB hubs work, so I don't see why these wouldn't. If you can, try putting a card in all of the slots to see if one is detected and then you'll know priority. There may be a way to remount the drives to different orders, but I have no idea how you would.

If you're rooted and have shell access you could manually mount the drives provided they're seen. They should be seen, I've had 6 devices hanging off a hub for mine and other than not knowing how(or not having the driver) to mount the DVD's UDF/ISO filesystem they all worked.

Count me in among the TnT Lite users who haven't yet figured out how to get their SD card reader to be recognized or mount. Mine has an LED on it that doesn't light up, leading me to believe it's not receiving power.

[Q] SD Card Reader bug

Hello all,
I have a strange behavior :
32 gigs SD card unlocked
I can read write on PC but when I insert it into the SD slot of the Transformer's dock the property is switched to Read only.
If I take the same SD card and put in into a dongle and plug it into the USB slot : the property is now Read & Write...
Any hint please ?
Fand'

Anybody at least has faced this trouble ?

What program are you using to access the SD card in android? Where does it tell you that it is read-only/read-write.
I know in root explorer there is a toggle for read-write/read-only.
Can't say I have the same problem as you, but I have my own SD card problem with the dock.

fandaor said:
Anybody at least has faced this trouble ?
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I haven't faced this trouble with an SD card, but I have tried to plug in a 8GB USB Thumb Drive to the USB port on the dock and the TF won't even recognize it. So there may be some bug there that might be fixed with HC 3.2 update
Also, I have used a 2GB SD Card in the SD Card slot on the TF dock and it worked fine for me. I have the dock with serial # B50KAS, running stock HC 3.1.

Hello,
I use ES File Explorer.
The same SD card inserted in the dock in the SD reader has a property : Read
If I use a USB dongle, insert the sd card and plug it into the dock, the property is then Read Write...
Tried with another SD card and it worked normally (but it was a 16Gb).
Soooooo weird.
I will wait for the next update to see if there is any issue solve on the SD reader... sounds like a little problem for managing high capacity SD card.
Fandaor

ASUS USB Kit and ASUS SD Card Reader

I recently Purchased the Asus External USB and External Card Reader. Both work excellent. My Question when using either external adaptor with a hard drive or sd card all files are easily accessed with the file manager but No Files (Pictures,Music,Movies) will sync with any Apps Like it does with the Micro Sd Card. Am I missing something or is there a walk around for this?

Copy from one USB-device to another with Asus Infinity

Hello,
New to Android and new to this forum. I have my TF700T two weeks now and I'm glad I bought it. My target is to copy the content of my Compact Flash cards (16GB each - from my DSLR) to a portable hard drive. Therefore I tried to connect both a card reader and a portable hard drive via an auto-powered USB-hub to the only usb-connection of my tablet. I even tried with another hub and even with a third hub. The only result was that my tablet only found the first device that was connected (regardless wich one: the CF-card or the HD) with the hub and not both at the same time, so copying from the CF-card to the drive isn't possible in one step. Sure I can copy the CF-card to the internal memory of the tablet and in a second pass move it to the HD, but that is very time-consuming.
Anyone who knows how to connect more then one usb-device at the same time via a powered USB-hub and do a file transfer between them? Your help is greatly appriciated.

You can use wi fi transfer to do it with a file manager, like file expert.

tbtaf said:
You can use wi fi transfer to do it with a file manager, like file expert.
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@tbtaf: When on vacation or on a photo trip I only have that portable hd, my tablet and a powered usb hub. I think a Wifi appraoch is not applicable then. Or am I missing something?

Sounds like you need to setup a second mount point for the additional device - don't know if that can actually be done or not, but I do know that some people who could not even connect the first device were able to manually specify the device by mounting it in a terminal window.
I'm not sure 100% on the code, but let me try to find out.

Or you could copy the 16 Gb CF card onto the pad's internal memory (or external MicroSD card), disconnect it, connect the HD and then copy it out again.

HeartWare42 said:
Or you could copy the 16 Gb CF card onto the pad's internal memory (or external MicroSD card), disconnect it, connect the HD and then copy it out again.
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He already mentioned, he doesn't want to do this, he wants to copy straight.
For now, it's not possible since the powered hub or non power hub unable to recognize 2 devices at the same time.

CF, now there's nostalgia if anything. I thought those became outdated over 3 years ago... Fact is the CF is hardly compatible with mobile devices these days.
No, you can't copy from an external cardreader directly onto an external HDD through your tablet. It can only read 1 storage device in the USB port. Multiple devices works, but multiple storages doesn't. Some people have had some success with USB Flashdrives/Pendrives instead of HDD's though. You could try that.
You can copy from an SD to HDD easily though, so you could consider using an SD with a CF adapter if your camera has no SD slot. (SD's have the added advantage that the pins can't bent.)

Car reader problem

Did anybody tried to use a card reader in the ATT HOX?
I am having issues, my external card reader ist no reconigzed, but a normal usb thumb drive works weel. Ideas about this? Do I need a specific
microsd card reader?
Btw in a S4 the reader works very well, so no, the reader works fine and the otg cable too.