AnsweredAssumed Answered

i.MX257 USB Driver: Unable to get attach event interrupt

Question asked by Sayan Mukherjee on Aug 24, 2016
Latest reply on Aug 25, 2016 by Sayan Mukherjee

According to the existing USB driver available as the part of the Linux BSP for the i.MX25 PDK board, I have followed it in my driver. But unfortunately I am not getting USB attach interrupt. According to my understanding, I doubt there is some settings which I may have missed.



I am trying to write a USB driver for the Host operation in the Host port only.


I found that the OTG registers from offset (0x0000 to 0x01DC) have some values (mostly default) after the initialization. But the same set of registers for the Host from offset (0x0200 to 0x0380) are all Zeros.


Do you have any idea for this behavior?


Thanks in advance.