I try to send/read a control message with a specific setup packet to an USB device.
I've found at MSDN this documentation: http://msdn.microsoft.com/en-us/library/ff537344%28v=vs.85%29.aspx and at the usbuser.h the struct "_USB_SEND_RAW_COMMAND_PARAMETERS" which can be filled with the parameters for a setup packet. The problem ist that MSDN says about this function: "Do not use this request".
The next try was the request code "USBUSER_PASS_THRU" but I don't know what the parameters mean and I don't think that it is possible to send a specific setup packet with this request code.
I can't use WinUSB because I would like to solve this without any installation or other requirements to the target PC.
Has anybode solved this problem or has an hint to solve this?
Thank a lot.
Regards
If you want to avoid driver installations, you could make your device emulate an Human Interface Device (HID) or Mass Storage Device; both of those types of devices work automatically with the built-in Microsoft drivers.
If you figure out another way to do it, I'd be interested to hear the answer.
Related
I am developing C++/Qt application which interacts with Tektronix TDS2002 oscilloscope via USB. The oscilloscope appears as "USB Test and Measurement device (IVI)".
Currently I use TekVISA library supplied by the oscilloscope's vendor. It works, but it is huge, old, buggy and poorly maintained. Therefore I would like to bypass the library and interface the device directly.
So far I have found this simple library: https://github.com/xyphro/WinUsbTmc It is exactly what I am looking for, but it uses libusb which requires to install some device filter and in addition it is advised to be more development tool than customer solution. Do you have any experience on this?
What is the easiest way to interact with USB Test and Measurement device in Windows/C++/Qt?
Thank you for your suggestions :)
You need a USB driver. My oscilloscope works with the driver included in this VISA package (the driver can be extracted very easily): http://www.keysight.com/main/software.jspx?cc=CZ&lc=eng&nid=-11143.0.00&id=2504667&pageMode=CV I assume all USB TMC devices can use the same driver, but I have no possibility to check this.
USB driver can be accessed via standard Windows functions. Guys on this forum were really close:
https://forum.tek.com/viewtopic.php?f=568&t=137573 and also this document was very useful: http://www.ivifoundation.org/downloads/Class%20Specifications/Ivi-6%202_USBTMC_2010-03-23.doc
You cannot write commands to OSC directly - data you send and receive have certain header which has to be in the correct format, otherwise the oscilloscope ignores the message. See reading and writting implementation in this simple library: https://github.com/xyphro/WinUsbTmc I didn't use this library because it uses libusb library which uses some kind of device filter and I personally do not like this concept (and in addition I have genuine working driver).
Data you read have also a simple header. To ensure you fit the header structure on input data well, you should first flush the input buffer. Then you issue reading request (using write command - see WinUsbTmc library above) and finally you receive the data and fit the header on its beginning.
I hope this will help to somebody :)
With regards
klasyc
I need to simulate plug/unplug for USB device in C++ under Windows environment. I know the existence of this IOCTL
http://msdn.microsoft.com/en-us/library/windows/hardware/ff537243(v=vs.85).aspx
(IOCTL_INTERNAL_USB_CYCLE_PORT) which indeed is what I am looking for, but I don't know how to use.
Is there anyone which can tell me who I can find an example or share some lines of code in order to help me, please!
Thanks in advance.
Since you are in User Mode land and using C++ I'd recommend looking at the devcon sample. Out of the box you can use it on the command line to issue PnP or disable/enable requests to devices. The source code is also available, so you can use that as a start to get this functionality added to your environment.
I have a feature request on a project I work on, it is to integrate with a Paylife CC handheld, which has a USB connector to connect with the computer. I have the docs, and am reading up on it.
When I searched on google how to read/write to a usb device on linux, it said, use libusb.
I was wondering, is there another possibility? Can't I just open it like a file and write a stream to it, and read a stream from it?
I don't actually need to do anything fancy. I just need to write a string of control codes to the device, and it would be mildly nice to read back the ACK and Error codes. But since those are already displayed on the device screen, I don't have to do much with it, just deliver the total required for payment.
So my question is, what are my options?
The connected computer is a regular ol ubuntu linux box.
It is definitely possible when the device complies with one of the USB device classes -- drivers for them are universal.
If that's not the case, then you may stick with a manufacturer-provided or a third-party driver, given there is one and you possess enough of it's documentation.
If that's also not the case, libusb-1.0 is your resort, unless you want to write a kernel driver youself :)
My main goal is to create an advanced program for manipulating the packets that route within my network via the router. Let my program have total control over the router. Set the download/upload speeds to my inputs, apply the effect to certain devices within in my network. Block upload or download traffic. Set second delay for either the upload or download speed. Specify % of loss packets, and the list goes on.
The problem is that I don't know where to start. I know most languages at the very most basic level. I'd like to create this program in either C, C++ or C# but I don't know yet. What else do I need to know before creating this program? Winsock or something? Winpcap APIs?
This goal is my motivation to learn programming to the extreme, and I'm really looking forward to it.
Thanks in advance!
Hmmm I guess you would want to look at pcap(?):
pcap
Check out:
http://beej.us/guide/bgnet/html/multi/index.html
'Beej's Guide to Network Programming
Using Internet Sockets'
All you could possibly need to know about programming sockets for capture and manipulation.
If I were you I'd write it in C, I'm writing a similar project at the moment in C++ and it's hell but too late to stop and start again.
Hope that helps.
Bear in mind that you either need a router that you can re-program or you need to use your PC as a router to do this.
Either way you want to look into how IPTABLES are implemented.
I've never seen Desktop Windows used as a router only Windows Server, though it may still be possible. libpcap is for packet capture, but not interception as I understand it. Programs like Wireshark use it to monitor copies of packets, but not to modify them. If you want to attempt this, my impression has been that there is a lot more documentation and tools for doing something like this with NetFilter/IPTables on Linux. You can even install something like OpenWRT on a compatible router and get a small, cheap Linux router, though having Desktop Linux will probably help for development. The NetFilter QUEUE library can be used with some IPTables firewall rules to redirects specific (or all) packets to a regular user program. That program can then read the packet and modify it or even request it to be dropped.
http://www.netfilter.org/projects/libnetfilter_queue/
If you want to manipulate network traffic on a Windows machine (as you mentioned), you will need some extra software. This operating system wont give you the full control over itself, which is fine for some reasons.
I think what you want to do, should be done with either winpcap or win10pcap if you are using Win10. These packages contains a windows driver and the libpcap user space library.
I would like to be able to see and monitor my internet data (http/emule/email) on my own PC using Windows XP. I am thinking of something like WireShark but I would like to control it programmatically.
I would be using C or C++.
How can I do this?
WireShark uses winpcap to do it's thing.
Winpcap comes with a C interface.
winpcap is probably the most well known choice, but you could also write a Layered Service Provider. There's not a whole lot of documentation, but a good place to start is the article on msdn: http://www.microsoft.com/msj/0599/LayeredService/LayeredService.aspx
This has some advantages vs layer 2 packet parsing, but also some disadvantages. You'll need to evaluate where in the stack you want to live.
edit: Obviously, when I say pcap -- I really mean any similar approach. Obviously, winpcap was not the first driver/library combo to provide this sort of information.
Have a look at the code of the tool trafficWatcher. It uses WinPCap to distinguish between LAN and internet traffic.
The sourcecode is available here.