uart: add pre uart hook

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
2014-10-20 18:43:58 +01:00
parent d49f20b7ba
commit 77be6da29c
2 changed files with 6 additions and 0 deletions
--- a/src/uart/uart.c
+++ b/src/uart/uart.c
@@ -33,6 +33,11 @@
 mraa_uart_context
 mraa_uart_init(int index)
 {
+    if (advance_func->uart_init_pre != NULL) {
+        if (advance_func->uart_init_pre(index) != MRAA_SUCCESS)
+            return NULL;
+    }
+
    if ( mraa_setup_uart(index) != MRAA_SUCCESS)
        return NULL;