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  2. USB: Question about usb_write() API

Re: USB: Question about usb_write() API

Sundar Subramaniyan
 

Hi Johann,

On Tue, Jan 30, 2018 at 9:12 PM, Johann Fischer <johann_fischer@...> wrote:
Please use subsys/usb/class for testing and as reference.

The IN endpoint callback just informs that a endpoint buffer was transmitted to
the host.

I used the DW driver as a reference,
see https://github.com/zephyrproject-rtos/zephyr/pull/542
The Kinetis USB controller is a bit similar to NRF52, btw I would be glad
about review.

Thanks, will take a look at it.
 
There is an effort to implement the transfer method. This is very convenient
from the function point of view, but may complicate the drivers.
Please review https://github.com/zephyrproject-rtos/zephyr/pull/5231

Thanks, will look into this. I need to understand the transfer method. So after it's
been pulled, does the driver need to support it by default? Since there's no driver
registration using f_ops to the USB subsystem, there would be linking issues, no?
 
Regards,
Johann Fischer


Thanks,
Sundar
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