On Freitag, 22. Januar 2016 02:30:43 CET you wrote:
USB protocol allows for 16 IN and 16 OUT endpoints (USB 2.0 Spec, 8.3.2.2 Endpoint Field). A function may have an EP 1 for both IN and OUT, so these two should be kept separate. As EPs are either BULK or INTERRUPT (or ISO), it is fine to have one array per direction for all transfer types (also see e236519b7365ef75c5da6a5623f0b03d9c00cfae).
USB device address is 7 bits, so a bus may have more than 16 devices. Check the device number, as the DWC2 driver only supports BULK/ISO for the first 16 devices.
Signed-off-by: Stefan Brüns stefan.bruens@rwth-aachen.de
drivers/usb/host/dwc2.c | 29 +++++++++++++++++++---------- 1 file changed, 19 insertions(+), 10 deletions(-)
This one goes on top of the SPLIT support patches, if anyone is wondering why it is labeled Patch 7/7.
Kind regards,
Stefan