uart: remove O_NONBLOCK flag

Sometimes, peripheral_uart_read() returns -EAGAIN.
If you retry it many times, it returns correct value.

Change-Id: I2a7f9aacc7d0ca47ca06cca52382c0185c76f4fb
(cherry picked from commit 1fd0a40d9d0978fdfa8dae6e221c08b650a5224b)

diff --git a/src/peripheral_uart.c b/src/peripheral_uart.c
index 8453095..2e86a28 100644 (file)
--- a/src/peripheral_uart.c
+++ b/src/peripheral_uart.c
@@ -120,7 +120,7 @@ int peripheral_uart_open_flags(int port, peripheral_open_flags_e flags, peripher
        };
 
        char path[DEV_PATH_FMT_MAX_SIZE] = {0, }; /* space for /dev/ttyXXX%d */
-       const int FLAGS = O_RDWR | O_NOCTTY | O_NONBLOCK | O_CLOEXEC;
+       const int FLAGS = O_RDWR | O_NOCTTY | O_CLOEXEC;
 
        int fd = -1;
        int retval = peripheral_uart_find_devpath(port, path, DEV_PATH_FMT_MAX_SIZE);