Add missing function to get device speed to the LibUSB v1.0 API.

MFC after:	1 week
Approved by:	re (kib)

2 files changed, 30 insertions, 0 deletions

diff --git a/lib/libusb/libusb.h b/lib/libusb/libusb.h
index 0c9e50f..bbde475 100644
--- a/lib/libusb/libusb.h
+++ b/lib/libusb/libusb.h
@@ -151,6 +151,14 @@ enum libusb_error {
 	LIBUSB_ERROR_OTHER = -99,
 };
 
+enum libusb_speed {
+	LIBUSB_SPEED_UNKNOWN = 0,
+	LIBUSB_SPEED_LOW = 1,
+	LIBUSB_SPEED_FULL = 2,
+	LIBUSB_SPEED_HIGH = 3,
+	LIBUSB_SPEED_SUPER = 4,
+};
+
 enum libusb_transfer_status {
 	LIBUSB_TRANSFER_COMPLETED,
 	LIBUSB_TRANSFER_ERROR,
@@ -304,6 +312,7 @@ ssize_t libusb_get_device_list(libusb_context * ctx, libusb_device *** list);
 void	libusb_free_device_list(libusb_device ** list, int unref_devices);
 uint8_t	libusb_get_bus_number(libusb_device * dev);
 uint8_t	libusb_get_device_address(libusb_device * dev);
+enum libusb_speed libusb_get_device_speed(libusb_device * dev);
 int	libusb_clear_halt(libusb_device_handle *devh, uint8_t endpoint);
 int	libusb_get_max_packet_size(libusb_device * dev, uint8_t endpoint);
 libusb_device *libusb_ref_device(libusb_device * dev);
diff --git a/lib/libusb/libusb10.c b/lib/libusb/libusb10.c
index 3ecba58..d11f631 100644
--- a/lib/libusb/libusb10.c
+++ b/lib/libusb/libusb10.c
@@ -272,6 +272,27 @@ libusb_get_device_address(libusb_device *dev)
 	return (libusb20_dev_get_address(dev->os_priv));
 }
 
+enum libusb_speed
+libusb_get_device_speed(libusb_device *dev)
+{
+	if (dev == NULL)
+		return (0);		/* should not happen */
+
+	switch (libusb20_dev_get_speed(dev->os_priv)) {
+	case LIBUSB20_SPEED_LOW:
+		return (LIBUSB_SPEED_LOW);
+	case LIBUSB20_SPEED_FULL:
+		return (LIBUSB_SPEED_FULL);
+	case LIBUSB20_SPEED_HIGH:
+		return (LIBUSB_SPEED_HIGH);
+	case LIBUSB20_SPEED_SUPER:
+		return (LIBUSB_SPEED_SUPER);
+	default:
+		break;
+	}
+	return (LIBUSB_SPEED_UNKNOWN);
+}
+
 int
 libusb_get_max_packet_size(libusb_device *dev, uint8_t endpoint)
 {