From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Bruens Date: Fri, 22 Jan 2016 02:52:04 +0100 Subject: [U-Boot] [PATCH 7/7] usb: dwc2: Do not mix data toggle for IN and OUT endpoints, check bounds In-Reply-To: <1453426243-833-1-git-send-email-stefan.bruens@rwth-aachen.de> References: <1453426243-833-1-git-send-email-stefan.bruens@rwth-aachen.de> Message-ID: <1474906.j9UEhrJMCI@pebbles.site> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 Br?ns > --- > 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 -- Stefan Br?ns / Bergstra?e 21 / 52062 Aachen home: +49 241 53809034 mobile: +49 151 50412019 work: +49 2405 49936-424