diff --git a/libs/usb/piusb.cpp b/libs/usb/piusb.cpp
index d3834576..6ee66bc5 100644
--- a/libs/usb/piusb.cpp
+++ b/libs/usb/piusb.cpp
@@ -335,7 +335,7 @@ ssize_t PIUSB::readDevice(void * read_to, ssize_t max_size) {
 #ifdef PIP_USB
 	if (isClosed() || ep_read.isNull()) return -1;
 	ssize_t ret = -1;
-	reading_now = true;
+	// reading_now = true;
 	switch (ep_read.transfer_type) {
 	case Endpoint::Bulk:
 		/*piCoutObj << "bulk read" << max_size;*/
@@ -343,7 +343,7 @@ ssize_t PIUSB::readDevice(void * read_to, ssize_t max_size) {
 	case Endpoint::Interrupt: ret = usb_interrupt_read(hdev, ep_read.address, (char *)read_to, max_size, timeout_r);
 	default: break;
 	}
-	reading_now = false;
+	// reading_now = false;
 	return ret;
 #else
 	return -1;