diff --git a/usb/usb/Usb.cpp b/usb/usb/Usb.cpp
index 39cbceb5..0736f4c4 100644
--- a/usb/usb/Usb.cpp
+++ b/usb/usb/Usb.cpp
@@ -594,7 +594,8 @@ ScopedAStatus Usb::switchRole(const string& in_portName, const PortRole& in_role
         if (fp != NULL) {
             int ret = fputs(convertRoletoString(in_role).c_str(), fp);
             if (ret == EAGAIN) {
-                std::this_thread::sleep_for(std::chrono::milliseconds(700));
+                ALOGI("role switch busy, retry in %d ms", ROLE_SWAP_RETRY_MS);
+                std::this_thread::sleep_for(std::chrono::milliseconds(ROLE_SWAP_RETRY_MS));
                 ret = fputs(convertRoletoString(in_role).c_str(), fp);
             }
             fclose(fp);
diff --git a/usb/usb/Usb.h b/usb/usb/Usb.h
index facc328e..15348af0 100644
--- a/usb/usb/Usb.h
+++ b/usb/usb/Usb.h
@@ -55,6 +55,8 @@ constexpr char kGadgetName[] = "11110000.dwc3";
 #define VBUS_PATH NEW_UDC_PATH "dwc3_exynos_otg_b_sess"
 #define USB_DATA_PATH NEW_UDC_PATH "usb_data_enabled"
 
+#define ROLE_SWAP_RETRY_MS 700
+
 struct Usb : public BnUsb {
     Usb();