shared-module/usb_hid: allow HID to wake sleeping host computer

Author: dhalbert

shared-module/usb_hid/Device.c

@@ -229,12 +229,16 @@ void common_hal_usb_hid_device_send_report(usb_hid_device_obj_t *self, uint8_t *
         RUN_BACKGROUND_TASKS;
     }
 
-    if (!tud_hid_ready()) {
-        mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("USB busy"));
-    }
+    if (!tud_suspended()) {
+        if (!tud_hid_ready()) {
+            mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("USB busy"));
+        }
 
-    if (!tud_hid_report(report_id, report, len)) {
-        mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("USB error"));
+        if (!tud_hid_report(report_id, report, len)) {
+            mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("USB error"));
+        }
+    } else {
+        tud_remote_wakeup();
     }
 }
 

supervisor/shared/usb/usb_desc.c

@@ -105,7 +105,7 @@ static const uint8_t configuration_descriptor_template[] = {
 #define CONFIG_NUM_INTERFACES_INDEX (4)
     0x01,        // 5 bConfigurationValue
     0x00,        // 6 iConfiguration (String Index)
-    0x80,        // 7 bmAttributes
+    0x80 | TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP,        // 7 bmAttributes
     0x32,        // 8 bMaxPower 100mA
 };