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Make sure we send out a all zero report once when the a mouse report has been sent

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This commit is contained in:
Kristian Sloth Lauszus
2018-06-07 02:10:27 +02:00
parent 1a0da7971a
commit b284e9fa58
1 changed files with 7 additions and 3 deletions
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10
right/src/usb_interfaces/usb_interface_mouse.c
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@@ -29,16 +29,20 @@ usb_status_t usbMouseAction(void)
usb_status_t UsbMouseCallback(class_handle_t handle, uint32_t event, void *param)
{
static bool usbMouseActionActive = false;
usb_status_t error = kStatus_USB_Error;
switch (event) {
case kUSB_DeviceHidEventSendResponse:
if (UsbCompositeDevice.attach) {
// Send out the mouse report continuously if the report is not zeros
usb_mouse_report_t *mouseReport = getInactiveUsbMouseReport();
// Send out the report continuously if the report is not zeros
usb_mouse_report_t *report = getInactiveUsbMouseReport();
uint8_t zeroBuf[sizeof(usb_mouse_report_t)] = { 0 };
if (memcmp(mouseReport, zeroBuf, sizeof(usb_mouse_report_t)) != 0)
bool reportChanged = memcmp(report, zeroBuf, sizeof(usb_mouse_report_t)) != 0;
if (usbMouseActionActive || reportChanged) {
usbMouseActionActive = reportChanged; // Used to send out all zeros once after a report has been sent
return usbMouseAction();
}
}
case kUSB_DeviceHidEventGetReport:
case kUSB_DeviceHidEventSetReport: