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The question is quite vague.
In general, If you are using HTTP, you are at pretty high level vs. bothering to ethernet or WiFi. You would be using API's provided by the networking stack and won't need to directly call anything related to WiFi/Ethernet.
If you are looking for a board, where...
If I understood your question!!!!
You'll be passing the structured pointer instead of the char pointer so the issue is not there i.e. aligning the structure is not an issue. (Under no reasonable circumstances I can believe that you'll pass struct by value.)
You are just confused how you can have...
Your question is not clear.
You can take a look at Linux kernel's CAN implementation. Or
some application based on STM32 e.g. https://code.google.com/p/obd2-instruments/r q
No offence meant but GPRS/GSM as a latest technology. Wow, maybe the message was written a few years back:)
But yes, for simple, very low data rate, remote data logging and monitoring a GSM/GPRS based comm. sys. would be pretty cheap.
You won't need to worry about that at the user level. But when you are sending the actual print from server to a real printer, you'll have to have the driver for the real printer installed on your board. You'll also need to take care of converting the user options (duplex printing, page setup...
You can avoid using two ethernet ports if your printer support USB connection. But I think the problem is more complex than a simple routing problem. It can head into three distinct ways depending upon whether you want to use the existing printing infrastructure.
Given that you don't want the...
Download the UVCView.x86.exe tool (It's part of Windows driver development kit but you can download it separately as well).
Run the tool. It will list all the USb devices on your system. Plug-in you USb disk and see what information (descriptors) is shown for that. If no information is shown...
First....
Given the assumption that you are quite familiar with C#, I suppose you know about Platform Invoke so you shouldn't be limited to c# due to "other" modules which are in c#.
Secondly...
1.
How a device will be handled by windows depends upon which driver the windows has associated with...
Re: Achieving communication between 2 embedded systems 2km a
You can also use Controller Area Network (CAN). It can give you a data rate of 10kbps upto a length of 5km...
After first SetupDiGetDeviceInterfaceDetail, allocate buffer for detailData like below
detailData=(PSP_DEVICE_INTERFACE_DETAIL_DATA)LocalAlloc(LMEM_FIXED, Length);
This question is more like the start of a discussion and will depend upon how you and the interviewer carry this.
One can say that at CAN level, the concept of node is transparent. One doesn't need to know where a message is coming from, it should just concentrate what the message is. Higher...
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