device: Disable USB on boot

Leaving USB connected might cause hickups on the USB bus, and causes power measurements to report incorrect data. Turn it off once the image has been downloaded. Signed-off-by: Bjorn Andersson <[email protected]>
linux-msm · Nov 28, 2023 · cc91b34 · cc91b34
1 parent 81e4687
commit cc91b34
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/device.c b/device.c
@@ -309,6 +309,11 @@ void device_boot(struct device *device, const void *data, size_t len)
 		fastboot_set_active(device->fastboot, device->set_active);
 	fastboot_download(device->fastboot, data, len);
 	device->boot(device);
+
+	if (device->status_enabled && !device->usb_always_on) {
+		warnx("disabling USB, use ^A V to enable");
+		device_usb(device, false);
+	}
 }
 
 void device_send_break(struct device *device)