Re: [libusb] submit_iso_transfer - errno : 16 , LIBUSB_ERROR_IO

[abdullah u. <abd...@ya...>]

Dear Tim,

I read you answers again, firstly thank you for your time.

In the beginning I had no idea about USB communication, found something in web including explanations about interrupt, isochronous... modes. Then I followed tutorials, discussions, forms etc. and then applied some examples. I had never heard something related to "libusb_set_interface_alt_setting", I am going to check that, because it might be neccessary later in another project.

By the way, might I ask how I could specify the length of a buffer, by checking the length of desciriptor in bytes? Because I am still trying to understand better.

Thanks,
Abdullah


On Monday, April 14, 2014 4:37 PM, abdullah unutmaz <abd...@ya...> wrote:
 
Dear Friends,

Thank you for your answers and your time.

I have given up using libusb for this specific purpose, instead I developed my program using asoundlib.h, ALSA this morning.I have successfully received data. 


In my further projects, planning to take a look at kernel drivers and related libraries,I am sure, at least for me, it would be much faster.

Thanks,
Abdullah

On Monday, April 14, 2014 4:13 PM, Kustaa Nyholm <Kus...@pl...> wrote:
 
>  If it looks like an audio device, you should use the audio APIs.
>  Seriously.
>  It is simply a waste of time to reinvent all of that
>  hard-fought and well-tested code in the standard audio class driver.


I'm sure you are right, but what would then be a good standard
device to use if the OP is serious about learning to do ISOC?

br Kusti





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