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Implement Reading and Writing N Bytes

See original GitHub issue

Hi,

Is it possible to implement reading and writing n bytes from/to a device more like a Stream? Something like this:

Read(byte[] buff, int offset, int read)
Write(byte[] buff, int offset, int len)

Thanks.

Issue Analytics

State:
Created 4 years ago
Reactions:1
Comments:26 (12 by maintainers)

Top GitHub Comments

1reaction

mxjonescommented, Jul 4, 2019

@MelbourneDeveloper Hey, I remembered reading this whilst I was playing with the other work in #19 - as I was testing I found something in relation to this…

@realivanjx I’m not sure if the code does call WinUsb_GetPipePolicy . It’s currently getting the buffer sizes from the descriptor with WinUsb_GetDescriptor. Maybe this is just wrong, but I need to investigate.

It would be really awesome if you could fix the problem and submit a pull request.

The Read & Write buffer size for my device from the descriptor is 64, which didn’t seem right to me (same as reported here) - after looking a bit more it seems like the correct values are being returned for each specific endpoint by the WinUsb_QueryPipe call (WINUSB_PIPE_INFORMATION.MaximumPacketSize) - which for me is:

Read: 512 Write: 512 Interrupt: 8

Not sure if this is only for the device I’m using though

1reaction

ivanjxcommented, Jul 1, 2019

ok then. for now i will just use the debug version of it not really a big deal.

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