[bsp][ch32] fix the empty function ch32dma_transmit return error code as -RT_EIO

2023-03-01 06:41:17 +08:00 · 2023-03-01 06:41:17 +08:00 · 4021b82161
parent 3a08336cb5
commit 4021b82161
1 changed files with 1 additions and 1 deletions
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.c
@ -345,7 +345,7 @@ static int ch32_getc(struct rt_serial_device *serial)

 static rt_ssize_t ch32dma_transmit(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, int direction)
 {
-    return RT_EOK;
+    return -RT_EIO;
 }

 static void uart_isr(struct rt_serial_device *serial)