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| author | Vincent Palatin <vpalatin@chromium.org> | 2014-10-09 16:57:13 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-10-11 02:22:18 +0000 |
| commit | 4d81320ed8b5f8231759d1608183a0daf233ea45 (patch) | |
| tree | d6bf08d04aa64903314ddf2282ad61aab06d4d9f /include/usb_bb.h | |
| parent | ac2b30d1e74f4cf2e956db58d13fbaffd61cb3aa (diff) | |
| download | chrome-ec-4d81320ed8b5f8231759d1608183a0daf233ea45.tar.gz | |
usb: allow reading descriptors larger than 64 bytes
When a control transfer requests a descriptor larger than 64 bytes, we
need to do several IN transfers to get the proper packet sequence :
SETUP IN IN IN .. IN OUT(null)
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=samus
BUG=chrome-os-partner:32652
TEST=set USB_STR_VERSION to "012345678901234567890123456789ABCDEF",
then do "lsusb -v" on the host and check the USB transfers
with the protocol analyzer.
Change-Id: I6940095008cb2a34c6896b337c5eda4fa267adc1
Reviewed-on: https://chromium-review.googlesource.com/222700
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'include/usb_bb.h')
0 files changed, 0 insertions, 0 deletions