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Diffstat (limited to 'lib/libusb/libusb20.h')
-rw-r--r--lib/libusb/libusb20.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/libusb/libusb20.h b/lib/libusb/libusb20.h
index d16c6a628ea6..958a379ed254 100644
--- a/lib/libusb/libusb20.h
+++ b/lib/libusb/libusb20.h
@@ -197,8 +197,9 @@ struct libusb20_quirk {
char quirkname[64 - 12];
};
-/* USB transfer operations */
+#define LIBUSB20_MAX_FRAME_PRE_SCALE (1U << 31)
+/* USB transfer operations */
int libusb20_tr_close(struct libusb20_transfer *xfer);
int libusb20_tr_open(struct libusb20_transfer *xfer, uint32_t max_buf_size, uint32_t max_frame_count, uint8_t ep_no);
struct libusb20_transfer *libusb20_tr_get_pointer(struct libusb20_device *pdev, uint16_t tr_index);