diff options
| author | Nicolas Boichat <drinkcat@chromium.org> | 2018-10-09 15:07:44 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-10-11 08:55:57 -0700 |
| commit | 399bc14a001e2e12c158233081948f10ef885f6d (patch) | |
| tree | ab2411240dbb6f29520c0513b39e9223fa3683a9 | |
| parent | 220729bbb66febef5d4eaa03803025cc2c7869fc (diff) | |
| download | chrome-ec-399bc14a001e2e12c158233081948f10ef885f6d.tar.gz | |
chip/stm32/usb_hid_keyboard: Reload keyboard endpoint on reset
After the USB device is reset, force sending the keyboard data at
least once to make sure the host is aware of the curreny key/switches
status.
In particular, this is necessary for the host to be aware that we
are in tablet mode on host boot (this is not a problem on attach, as
other routines in the EC init sequence cause the endpoint to be
loaded anyway).
BRANCH=nocturne
BUG=b:117439202
TEST=Reboot nocturne with whiskers attached in tablet mode, see
that nocturne is still in tablet mode after reboot:
evtest --query /dev/input/event6 EV_SW SW_TABLET_MODE; echo $?
=> 10
Change-Id: I4b0e20a9f78c5262d7effd8bd37ace0d033b3f5a
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1270297
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
| -rw-r--r-- | chip/stm32/usb_hid_keyboard.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/chip/stm32/usb_hid_keyboard.c b/chip/stm32/usb_hid_keyboard.c index efc02b48a4..f30eedde13 100644 --- a/chip/stm32/usb_hid_keyboard.c +++ b/chip/stm32/usb_hid_keyboard.c @@ -407,6 +407,13 @@ static void hid_keyboard_event(enum usb_ep_event evt) NULL, 0 #endif ); + + /* + * Reload endpoint on reset, to make sure we report accurate + * state to host (this is especially important for tablet mode + * switch). + */ + write_keyboard_report(); return; } |