Im writing a WPF application that wants to get access to a digital camera, and have been madly Googling around for solutions and Im pretty happy with how its all going. This is what I have at the moment: private const decimal WM_DEVICECHANGE = 0x0219; private const int DBT_DEVTYP_HANDLE = 6; private const int DBT_DEVNODES_C...
Hi, I am trying to connect a Stellaris LM3S8962 evaluation kit to a linux host machine. I am using the CodeSourcery G++ for the development toolchain. When I try to run a helloworld example the connection fails with this message: arm-stellaris-eabi-sprite: error: E104. I/O Error communicating with USB Device. arm-stellaris-eab...
Hi All, I am getting "endpoint stalled error" in my CDC device. The usb stack is detecting the cable. The state is set as running but the errorcode is set as 0x11 which indicates 'USB_ENDPOINT_STALLED'. I verified and found that the endpoints has been assigned properly. What would be scenarios when "endpoint stalled error" would be r...
Anybody with programming experience on the ColdFire line, please help! I'm using the CMX USB-Lite stack with the ColdFire MCF52259. For some reason, USB enumeration fails at the very first step, as soon as I enable the DP pull-up resistor. This is what I'm doing :- INT_ENB, OTG_INT_EN, ERR_ENB are set to 0x0 INT_STAT, OTG_INT_STAT and...
I'm looking into connecting multiple low resolution USB webcams to a single computer. What implications might this have on performance? How does, for example, four 320x240 cameras fare against a single 640x480 camera? I'm not well versed in the architecture of the USB interface, what are the performance caveats? By performance I mean how...
My activity needs to communicate with a java server located on my dev machine. Actually, using the emulator, I can access the server socket via the special 10.0.2.2 address. Now I'd like to test my app on my phone connected via usb, but it seems like I can't use 10.0.2.2 to access my dev machine localhost anymore. Naturally using a wifi ...
I'm trying to modify the Android device driver for calibre (an e-book management program) so that it identifies devices by only vendor id and product id, and excludes BCD. The driver is a fairly simply python plugin, and is currently set up to use all three numbers, but apparently, when Android devices use custom Android builds (ie Cy...
I'm a bit confused on the description of joystick axes and I'm hoping that someone has a link or document which could help clear my confusion. I'm not a Windows guy, so trying to port some traditional Windows gameport code has me a bit confused. We all know about the common first three axes: X Y Z My understanding was that in the game...
If I use a modified usb skeleton driver on Linux and I insmod the module with the USB device already plugged in, the probe function doesn't get called. I need to unplug and replug the device in order for the driver to be activated. This is not the case for e.g. the serial drivers, I made some tests. Is there a reason for this? How do I g...
I have a .sh script that automounts any usb device that is plugged in. I need it to also find if there are videos in a certain location on the device that is plugged in then write them to a videos.txt file. Here's what I have and its not working. Also I need it to put the mountpoint in the videos.txt file. ${MOUNTPOINT}$count is the path...
How do I send and receive via USB in C#? And what about Serial and LPT? ...
Is there a way to assign one HID device to a program and then another identical HID device to another program without each of them grabbing randomly the first HID device they enumerate? I'd need some kind of unique identifier. Is there such thing? On windows xp/vista/7. ...
How do I Flip the Removable Bit of my USB Pen Drive or HDD in C# like this Tool does? Thanks in advance! ...
I'm currently doing a project where I have to interact with a circuit I made through the parallel port of a computer. However, my computer doesn't have a parallel port so I borrowed a Parallel to USB adapter cable. The cable didn't come with any drivers, but it's recognized by the device manager as a "USB Printing Support" controller, un...
I began learning Python a few days ago, and i was wondering about a practical use for a program. Then i came up with the following: if my brother is in his room recording himself playing guitar, a led plugged to the usb and wired so it's outside his door lights up, and then i'll know he's recording and i'll take care not to make any nois...
I am trying to find a list of "Microsoft OS Descriptors" for USB. The best I could do is find a reference to "Appendix 1 of Extended Compat ID OS Feature Descriptor Specification". Of course I can not find this either. Any ideas? ...
We have an auto update for our software that is installed via USB key (with the auto run). If I wanted to ensure that only authorized USB Keys were used, what's the best way? Our installer is already signed, and it won't run otherwise. But I'm more wanting to inspect the USB Key for a signed installer, and if it's not there, just ignore...
Hello, all! Is it possible connect USB FLASH DRIVE to iPhone cable and onIphone reading data from this drive ? thanks, ...
I am looking for a combination USB device that is both a flash drive and a Bluetooth adapter. Has anyone seen an item like this available recently? I found some old articles circa 2004 but could not find anything current. Could anyone recommend a company or service that could help me find an item like this? Thank you, - G ...
Hello, I have to develope a software that connect to an external device. The problem is the connection. Is there a way to connect without Apple's special chip? Any way is possible: Bluetooth, Wifi, or USB. Thank You ...