usb Questions
2
I am currently developing a program to check if a USB device has been detected on a specific USB hub in C#. I know the PID and VID of both the hub and the slave device connected to the hub.
I am do...
1
If I connect a USB device to the host and then upgraded the USB device with a new firmware with changes in the Descriptor of the device. The host will use the old descriptor.
I know that I can for...
Abrahamabrahams asked 23/10, 2018 at 10:30
9
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How can I get a list of all the connected USB devices on a windows computer?
3
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According to the doc negative response means failure.
How to know what's wrong? is there any full doc about error types?
For more curious:
I'm trying to upload arduino sketch via USB. First i'm ge...
14
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I am trying to connect my android device on mac to test application I developed.
First I installed USB driver, then I activated in my phone the developer option by tapping on Build Number and then ...
Kato asked 21/1, 2015 at 18:0
2
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I have a Star TSP600 thermal receipt printer attached to my macbook via usb. The drivers are installed, and I can print to it using the normal Mac print dialog.
How I can construct a program to s...
7
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How can we query connected USB devices info in Python?
I want to get UID Device Name (ex: SonyEricsson W660), path to device (ex: /dev/ttyACM0)
And also what would be the best Parameter out of abov...
12
I'm trying to fix a non-responsive USB device that's masquerading as a virtual COM port. Manual replugging works, but there may be up to 12 of these units. Is there an API command to do the program...
4
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I am new to USB and to Android so please forgive me if I don't explain myself clearly.
I have a USB HID device that I can communicate with in Windows. I am trying to establish communication using ...
3
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Code:
Simple example that works perfectly with primary webcam (device 0):
VideoCapture cap(0);
if (!cap.isOpened()) {
std::cout << "Unable to read stream from specified device." << ...
Baudin asked 25/2, 2014 at 15:39
9
This question seems to be all over google, but the answers all point to using System Profiler. That's nice, but with System Profiler all you get is something that looks like this:
DasKeyboard:
...
7
I'm getting this error...
The semaphore timeout period has expired.
On this line...
ThePorts.ActivePort1.Open();
...but I only get it from time to time. When it happens, it happens over a...
Stella asked 22/12, 2012 at 2:7
5
I want to make something which will run on the background and only after the computer detect new device is connected the rest of the code will run, is there any elegant way to do such a thing?
2
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I have this USB Relay and I'd like to control from an Android phone.
(There is a similar post here but it explains how do it from a Linux shell. By looking at that code i figured i'd be able to so...
3
I am developing a RNDIS composite device which includes a RNDIS device, a usbnet device ,a modem device and a self-defined CDC device.
The PC is running Win7 32bit, and I am using the default RNDI...
5
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This problem is old as the world. There are discussions and solutions available. It all boils down to update the rules file and give permissions. So I have followed the recipe. But I still have the...
Thigmotaxis asked 31/5, 2018 at 13:20
11
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Is it possible to turn on/off power supplies from USB manually with Linux?
There's this external USB cooling fan (the kind you use to cool yourself off, not the PC), and it would be nice to be abl...
2
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I was wondering if it could be possible to control the power of usb ports in Python, using vendor ids and product ids. It should be controlling powers instead of just enabling and disabling the por...
1
I've been following guidance from here, in order to connect to a usb device, with the Android phone as a host. https://developer.android.com/guide/topics/connectivity/usb/host.html
From the paragr...
Dissemblance asked 11/5, 2020 at 16:29
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2
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How do you get the raw descriptor data from a HID device in Windows?
Background:
I need to get the Manufacturer, Product Name, and Serial Number from a HID device in Windows. I'm using hid.dll to...
3
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Well, the question is rather simple - how can i handle left/right/middle click, wheel and (!)hover move in android 2/3/4.
I've been digging on this topic and found the following
in api 14 we ca...
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What I really want to know is whether it is a hardware problem, or a software problem. Could I plug my android phone into a computer via USB and have it act as a hardware keyboard. I do not want to...
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I'm planning to make a login system by USB, so if you put in a USB-drive and open a specific webpage, the website asks the USB-drive for the code (e.g. by a JavaScript file, a redirect or something...
Homorganic asked 4/11, 2013 at 22:16
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Is there a Bash script and/or daemon that I can write that will detect a specific USB drive and then sync that drive with a directory?
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