Add a function to check if the usb devices is still connected.

Submitted by:	Hans Petter Selasky

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/libusb/libusb20.c b/lib/libusb/libusb20.c
index 1c75fc16712c..e181b49d24eb 100644
--- a/lib/libusb/libusb20.c
+++ b/lib/libusb/libusb20.c
@@ -67,6 +67,7 @@ dummy_callback(struct libusb20_transfer *xfer)
 #define	dummy_set_config_index (void *)dummy_int
 #define	dummy_set_alt_index (void *)dummy_int
 #define	dummy_reset_device (void *)dummy_int
+#define	dummy_check_connected (void *)dummy_int
 #define	dummy_set_power_mode (void *)dummy_int
 #define	dummy_get_power_mode (void *)dummy_int
 #define	dummy_kernel_driver_active (void *)dummy_int
@@ -673,6 +674,15 @@ libusb20_dev_reset(struct libusb20_device *pdev)
 }
 
 int
+libusb20_dev_check_connected(struct libusb20_device *pdev)
+{
+	int error;
+
+	error = pdev->methods->check_connected(pdev);
+	return (error);
+}
+
+int
 libusb20_dev_set_power_mode(struct libusb20_device *pdev, uint8_t power_mode)
 {
 	int error;