From: vichy > hi all: > I use kernel 3.8.0 > And when I plug in webcam in my platform xhci host, I get below message: > > platform-xhci platform-xhci.0: ERROR no room on ep ring, try ring expansion > platform-xhci platform-xhci.0: ring expansion succeed, now has 4 segments > platform-xhci platform-xhci.0: ERROR Transfer event TRB DMA ptr not > part of current TD > > under what circumstance the controller will return TRB DMA which is > not part of TD? When the event TRB contains a pointer to something other than a data buffer. This is true for one of the error events. Not that they should happen either. David > Is it possible to workaround this issue by modifying xhci-mem.c for > extending segments? > > appreciate your help in advance, > -- > To unsubscribe from this list: send the line "unsubscribe linux-usb" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html ��.n��������+%������w��{.n�����{���)�� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
