pl-2303 USB-COM controller? - Nexus 7 Q&A, Help & Troubleshooting

There are networking devices that are controlled via serial port. I usually hook them to my laptop's USB port via a standard pl-2303 controller and access the serial port via Putty, SecureCRT etc. Drivers for this controller are long included with standard Linux kernel, although I'm not sure about Android's one.
Is there any way to hook the controller to Nexus's USB host and get shell through it?
Or are there any other ways to get COM console access using a Nexus 7?

Did you ever get anywhere with this?
JDima said:
There are networking devices that are controlled via serial port. I usually hook them to my laptop's USB port via a standard pl-2303 controller and access the serial port via Putty, SecureCRT etc. Drivers for this controller are long included with standard Linux kernel, although I'm not sure about Android's one.
Is there any way to hook the controller to Nexus's USB host and get shell through it?
Or are there any other ways to get COM console access using a Nexus 7?
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Related

htc universal usb host driver

Anyone got a wm5/ce5 usb host driver for htc universal (pxa270 intel arm processor)? I'm trying to write one, but if someone could save me the effort, please do? I know it will work, as it does under linux.
USB Host on a universal will be great. Didn't know it works under Linux.
driver for view a universal as a sd writer and reader or a driver for the universal for attach a pendrive to a universal?
drivers for attaching a pendrive.
A USB host driver enables you to hook up USB devices like memory key, keyboard/mouse etc. to the universal. This feature is only available on a few pda models made by toshiba, fujitsu, asus, acer etc.
imesh said:
driver for view a universal as a sd writer and reader or a driver for the universal for attach a pendrive to a universal?
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Correct me if I'm wrong but wouldn't it have to be supported by the hardware? As far as I know the Universal does not have USB host so getting a driver wouldn't be much help...
apparently it works under linux so the hardware must support it
Good question. I need the host driver and then a driver for mass storage (e.g. pen drive, hard driver, etc), HID (for keyboard mouse), etc. The htc universal has a usb host controller built into the arm processor (pxa270). The problem is that it also has a usb device controller build in which takes precedent for the mini usb out, so you can use activesyn. However, with the right bit of code you can reconfigure port 2 to act as a usb host. The other problem is that port 2 doesn't have any power (but that is easy to fix with an external power source from a usb hub or battery [I use a single AA battery, (giving 5 volts at 0.5-1 amp), that lasts for 2 hours]).
hi any success yet with the usb host function? is it possible or just a hoax?
nothing personal it just seems that some ppl like to make fun about this topic and spread hoax!
u have any evidences that it works under linux?
maybe this link is helping you in creating a driver!
http://www.deje.gmxhome.de/index.html
cheers
Mike
Suspect that you will also need the proper USB host cable that is used on the Sharp Zaurus under LINUX to let the Universal know that you want the USB port to work in host mode, they are about £10 & available from here http://www.figlabs.com/catalog/product_info.php/products_id/33
I have the Zaurus & Universal so I know the cable fits but I don't have a driver to test.
Mike
Mikew said:
I have the Zaurus & Universal so I know the cable fits but I don't have a driver to test.
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The USB host is used by Linux on HTC phones, but not for the external USB connector
(BT on magician, and gsm_data on some others http://wiki.xda-developers.com/index.php?pagename=HTC_Serial)
Mikew said:
Suspect that you will also need the proper USB host cable that is used on the Sharp Zaurus under LINUX to let the Universal know that you want the USB port to work in host mode, they are about £10 & available from here http://www.figlabs.com/catalog/product_info.php/products_id/33
I have the Zaurus & Universal so I know the cable fits but I don't have a driver to test.
Mike
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I have one for wm2003, I not if it worked in wm05.
Yuo can try it?
any success yet??
Dont think I would want to try a WM2003 driver on a WM5 device.
Mike
Mikew said:
Dont think I would want to try a WM2003 driver on a WM5 device.
Mike
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You can do one backup before installing it.
I have installed it in my Universal and I have not had problems with wm5, but it has not worked with my standar cable
I've had no success with it either.. I have a cable that has the correct connectors.. originally used for connecting a usb pen drive to my lcd picture frame.. but like I said no luck with this RATOC driver.
Mikew said:
Suspect that you will also need the proper USB host cable that is used on the Sharp Zaurus under LINUX to let the Universal know that you want the USB port to work in host mode, they are about £10 & available from here http://www.figlabs.com/catalog/product_info.php/products_id/33
I have the Zaurus & Universal so I know the cable fits but I don't have a driver to test.
Mike
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i think that this cable is not enough, what about a 5v power source for the usb pen drive you'd connect?
your universal couldn't supply that, then you need a usb cable that can connect to a power source aswell.
You need to use a powered USB hub if the slave device requires power, there are one or two hubs that run on batteries so you can still be mobile.
You will need a hub if you plan to use more than 1 USB device at the same time.
Mike
allmycrud said:
Anyone got a wm5/ce5 usb host driver for htc universal (pxa270 intel arm processor)? I'm trying to write one, but if someone could save me the effort, please do? I know it will work, as it does under linux.
Click to expand...
Click to collapse
I didn't know we had it in Linux yet??
In any case, while many devices do use a USB Host or USB Slave chip from a higher level, I believe the Universal talks to its USB as a raw stream device, and therefore can (and does, on occasion) act as a pure Serial communication channel (no discernable protocol beyond 8,n,1) or, therefore, any other type of serial-based channel. Yes, what I am saying is that you could, in fact, hook up a Serial ATA hard disk to an RS232 or USB port directly, so long as the device with the port has low enough level access to the port to absolutely control the data I/O.
The problem you face, however, is that to use the USB port as if the device were the host, you would first need to remove or disable whatever makes it work as the slave. In Windows Mobile that's really not an easy job given the number of different devices and different drivers, some with USB chips, some without... On many devices I can imagine that doing that alone would really bugger up general operation. What happens, for example, to ActiveSync when you suddenly get rid of the port it usually talks to for sync?
Mikew said:
You need to use a powered USB hub if the slave device requires power, there are one or two hubs that run on batteries so you can still be mobile.
You will need a hub if you plan to use more than 1 USB device at the same time.
Mike
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Some USB devices have batteries, or have their own power supply You can also get USB cables with an extra (mains or battery) feed wired to the USB's power lines in parallel.
whatever happened to this thread?
allmycrud have you seen the thread from Zeno with USB host drivers?
there is at least one report of it working on a Universal, but I can't get it working on wm6.1... still have hopes though, as all reports suggest that USB host is possible on a uni... can never get verification from anyone though...

USB host?

I can't find a proof data that Dell Streak support USB _host_
Does somebody know it for sure?
If yes, could it support at least usb keyboard/mouse and external HDD without some kind of hacks?
You can use blutooth keyboard http://www.streaksmart.com/2010/06/dell-streak-supports-bluetooth-keyboards.html
how would you connect usb devices with cable?
So, let's imagine we sucessfully connected Keyboard and Mouse as Bluetooth HID devices.
But, sorry, it's not discover whether does it have USB host (!) or not.
The question is:
-will we have ability to have acess via USB to our USB storages (any, HDDs, DVD/BD drives, Flash drives)
-will we have ability to use USB peripheral devices like (additional) USB video cameras, printers, USB-Ethernet devices, etc (after got drivers for it)?

Composite out via USB Host?

Hi guys,
Just bought a vega, which should arrive soon. I'd love to be able to hook it up to my SDTV via composite, and I know the device supports USB Host mode.
Therefore does anyone know of a device which will allow me to mirror the screen via composite using the USB Host mode in any ROM?
Thanks a lot!
I don't think you can output video thru USB on any Android device.
MHL is for that and Vega doesn't have that connector.
You can only output thru HDMI, therefore you probably need something like this:
- http://www.amazon.com/HDMI-Composite-S-Video-Converter-3RCA/dp/B0047PDBP0
- http://www.amazon.com/gp/product/B002ZUI68G?ie=UTF8&tag=hdmitorca-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B002ZUI68G

[Q] Mini USB to RJ45 adapter?

wondering if there is an adapter somewhere to allow me to plug in my Evo4g(or any mini USB phone) to an RJ45 connector...for example a console port on a switch/router and use a terminal app to configure it.
is this even possible?
thanks for any info
Wow...
Wow lol, while that's a pretty cool idea I doubt it could work... I use a USB to Serial adapter on my laptop to connect to switch gear with a Cisco cable, this one specifically,
http://www.amazon.com/Keyspan-USA-1...1?s=electronics&ie=UTF8&qid=1318030317&sr=1-1
but the phone itself would have to have a driver for it, or you'd have to custom code one yourself... Either way I'm not sure a phone would even support serial emulation over its USB connection. Cool thought though!

Using wifi modules usb port for another device

Hi everyone,
I was developing a tablet application for controlling a circuit but now i stuck here somewhere.. there are a few options that i think about what to do after this stage. I need 2 usb ports , one for a usb serial converter (namely pl-2303) and other one is a standart flash drive. I tried to use a hub connected to an OTG cable with no luck. When i plug only one of my devices to OTG port they all work but when i plug 2 of them to hub system freeze or doesn't mount my flash drive. I tried 3 different hubs they are not working. Sometimes i made this setup running with an sd card reader instead of flash and a digitus converter instead of pl-2303. Then i though this can be an issue with the USB 1.1 - 2.0 specifications because pl-2303 is a USB 1.1 device and the rest is 2.0.
After i realize the realtek wifi module in the tablet is also mounted to a USB port i removed the module to check if i can connect one of my devices to that port. But as usual the wifi driver of the system is controlling this port , so when i try to power up the port, system checks if it can find the realtek module and when it cant detect realtek wireless module just shuts down the port back. While this happens i can see my device is connected to system for a few seconds before the driver shut it down.
So this is the all story. I just need this 2 device to work together. I am waiting for your opinions
The tablet is a ATM 7021 processor based cheap tablet.
Thanks in advance.

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