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feat(tusb_hid_example): Added possibility to wakeup the Host with the button press

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This commit is contained in:
Roman Leonov
2025-09-11 14:03:52 +02:00
committed by BOT
parent 2104c051d7
commit dc2013697a
1 changed files with 34 additions and 1 deletions
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35
examples/peripherals/usb/device/tusb_hid/main/tusb_hid_example_main.c
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@@ -16,6 +16,11 @@
#define APP_BUTTON (GPIO_NUM_0) // Use BOOT signal by default
static const char *TAG = "example";
/* Flag to indicate if the host has suspended the USB bus */
static bool suspended = false;
/* Flag of possibility to Wakeup Host via Remote Wakeup feature */
static bool wakeup_host = false;
/************* TinyUSB descriptors ****************/
#define TUSB_DESC_TOTAL_LEN (TUD_CONFIG_DESC_LEN + CFG_TUD_HID * TUD_HID_DESC_LEN)
@@ -152,6 +157,24 @@ static void app_send_hid_demo(void)
}
}
void tud_suspend_cb(bool remote_wakeup_en)
{
ESP_LOGI(TAG, "USB device suspended");
suspended = true;
if (remote_wakeup_en) {
ESP_LOGI(TAG, "Remote wakeup available, press the button to wake up the Host");
wakeup_host = true;
} else {
ESP_LOGI(TAG, "Remote wakeup not available");
}
}
void tud_resume_cb(void)
{
ESP_LOGI(TAG, "USB device resumed");
suspended = false;
}
void app_main(void)
{
// Initialize button that will trigger HID reports
@@ -182,7 +205,17 @@ void app_main(void)
if (tud_mounted()) {
static bool send_hid_data = true;
if (send_hid_data) {
app_send_hid_demo();
if (!suspended) {
app_send_hid_demo();
} else {
if (wakeup_host) {
ESP_LOGI(TAG, "Waking up the Host");
tud_remote_wakeup();
wakeup_host = false;
} else {
ESP_LOGI(TAG, "USB Host remote wakeup is not available.");
}
}
}
send_hid_data = !gpio_get_level(APP_BUTTON);
}