taikoyaP

EHCI: *_cancel() failed to free qH and qTD

2

I use SAMA5D2 EHCI host driver with USB CDC-ACM device (AMTelecom AML574). Calling `open()` and `read()` for device (/dev/ttyACM0) works good. But when calling `close()`, `DRVR_TRANSFER(for bulkin EP)` in reading...