Update usb_connected() to support new gadget driver
Change-Id: Iabe8be5bbfa7d2bf1d13280c8734ff75b62a152f
diff --git a/ui.c b/ui.c
index 0744da4..1736319 100644
--- a/ui.c
+++ b/ui.c
@@ -592,17 +592,18 @@
// Return true if USB is connected.
static int usb_connected() {
- int fd = open("/sys/class/switch/usb_connected/state", O_RDONLY);
+ int fd = open("/sys/class/android_usb/android0/state", O_RDONLY);
if (fd < 0) {
- printf("failed to open /sys/class/switch/usb_connected/state: %s\n",
+ printf("failed to open /sys/class/android_usb/android0/state: %s\n",
strerror(errno));
return 0;
}
char buf;
- int connected = (read(fd, &buf, 1) == 1) && (buf == '1');
+ /* USB is connected if android_usb state is CONNECTED or CONFIGURED */
+ int connected = (read(fd, &buf, 1) == 1) && (buf == 'C');
if (close(fd) < 0) {
- printf("failed to close /sys/class/switch/usb_connected/state: %s\n",
+ printf("failed to close /sys/class/android_usb/android0/state: %s\n",
strerror(errno));
}
return connected;