#ifdef HAVE_LIBUSB_1_0
#include <libusb.h>
#endif
+#ifdef HAVE_LIBFTDI
+#include <ftdi.h>
+#endif
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
libusb_handle_events_timeout(ctx, tv)
#endif
+/*
+ * Convenience for FTDI library version dependency.
+ * - Version 1.5 introduced ftdi_tciflush(), ftdi_tcoflush(), and
+ * ftdi_tcioflush() all within the same commit, and deprecated
+ * ftdi_usb_purge_buffers() which suffered from inverse semantics.
+ * The API is drop-in compatible (arguments count and data types are
+ * identical). The libsigrok source code always flushes RX and TX at
+ * the same time, never individually.
+ */
+#if defined HAVE_FTDI_TCIOFLUSH && HAVE_FTDI_TCIOFLUSH
+# define PURGE_FTDI_BOTH ftdi_tcioflush
+#else
+# define PURGE_FTDI_BOTH ftdi_usb_purge_buffers
+#endif
+
/* Static definitions of structs ending with an all-zero entry are a
* problem when compiling with -Wmissing-field-initializers: GCC
* suppresses the warning only with { 0 }, clang wants { } */