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I have a problem with a Linux/Ubuntu Desktop machine. The machine is used as a part of a larger setup (a autonomous boat) that relies on four USB-Devices. Three of them are plugged into an USB Hub and one is plugged directly into the machine.
Every time...
Started by Janusz on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
You should write udev rules that assign a persistent symlink to the device when.
You might also want to look into udev; that can also do what you're looking to do .
To the actual device file.
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I have a very simple USB gadget that has a switch on it to turn it on or off manually. I would like to have the ability to keep it switched on at all times, and then write software to allow me to programmatically send power to it over USB.
I envison building...
Started by AmoebaMan17 on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
Hence, opening and closing the port turns the device on and offUse an arduino....
I am a software guy to allow power through to the USB device.
Asking for is even possibly a USB hub device that is controllable using software.
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I have a Full Speed device that specifies the max packet size as 256 bytes. This is not USB compliant since the maxiumum packet size for a Full Speed Device should be 64 bytes. I can read (ReadFile) and write (WriteFile) to the device just fine, but I...
Started by SwDevMan81 on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
This is whats called....
Your deviceWhen I plug my USB 2.0 hard drives into my creaky old laptop (as opposed to my faster laptop device.
That only has USB 1.0 ports, it moves the data just as slow as if it were a USB 1.0 drive.
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How do I programmatically access a USB transfer cable (such as Belkin's Easy Transfer Cable ) from Windows?
I'm familiar with libusb-win32 , but from what I can tell, using that with newer devices and with Windows Vista seems iffy.
I know that Windows...
Started by Josh Kelley on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
(A WinUSB device on accessing....
For example, to get the name of the USB device you would call that Microsoft now offers WinUSB for simple user-mode communication with USB devices.
Or keyboard, but it conforms to the HID spec.
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I want to alert a user of a new message using some kind of USB device (e.g. a flashing light). Is it possible to control a USB device from ASP.NET or Silverlight?
Started by DD on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Even be feasable would be that the USB device in question is known to already be installed and has.
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Hi,
Is there a way to read USB device serial number and data in a text file in USB using visual studio 2005?
Started by rahul on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Try this:
USBSerialNumber usb = new USBSerialNumber(); string serial["InterfaceType"].ToString() == "USB") { this._serialNumber = parseSerialFromDeviceID(disk["PNPDeviceID); return parsedValue; } } }
Source: http://www.cfdan.com/posts/Retrieving....
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Hello,
I have been tasked to write a device driver for an embedded device which will communicate with the micro controller via the SPI interface. Eventually, the USB interface will be used to download updated code externally and used during the verification...
Started by lordhog on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
While writing a device driver for any interface (USB, Parallel port, etc...) the code needed/ - Linux USB device driver
http://www.microsoft.com/technet/archive/wce/support/usbce.mspx
-AD
I don't Kit , and steps to be followed....
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What does it mean in Windows Vista when you get the little popup saying "This USB device could perform faster"?
Started by Tio on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at superuser):
Check your mobo....
Find another port that does USB 2.0, or install USB drivers, to enable USB 2.0, which caps at 480Mbps.
Your device is plugged into a USB port running in USB 1.1 mode and thus is capped at 12Mbps.
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I am in the early stages of development of a device requiring USB connectivity. As a minimum the device must appear as a legacy serial port, but it would be useful if it could simultaneously appear as a mass-storage device.
Is this possible, or will the...
Started by Clifford on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
I did this for a project storage, video capture, and serial... .
I would suggest if you're going to do any even slightly serious USB developmentYes, you can make the same device appear as two (or more) logical devices.
device stuff.
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How to get hardware id of the usb device using device id...i am using vc++6.0 and OS is xp. is it possible by using wmi.
Started by pasham on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
I am posting the code here, it may ....
Hi Friends, Finally i solved my problem...thanks for your replies.. .
IoGetDeviceProperty(yourDevice, DevicePropertyHardwareID, ...) returns a list.
You might be somewhat confused because you assume the hardware ID .
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