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STM32_USB-Host-Device_Lib - receiving

Question asked by Juha Aaltonen on Jan 14, 2014
Latest reply on Mar 18, 2015 by Juha Aaltonen
How do I receive USB IN data with a host using the library mentioned in the title?

Do I have to poll by trying to receive from different IN EPs, or is there some interrupt based state change to indicate whether receive needs to be called or not?
Or do I just have to poll URB_State or HC_Status for that EP?

Especially I'm trying to receive device notificatons via interrupt IN ep, getting any IN data is important though.