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v1.0.3

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刘可亮
2024-01-27 08:47:24 +08:00
parent d3bd993b5f
commit 9f7ba67007
2345 changed files with 74421 additions and 76616 deletions
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6
kernel/rt-thread/components/drivers/serial/serial.c
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@@ -605,6 +605,9 @@ static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag)
RT_ASSERT(dev != RT_NULL);
serial = (struct rt_serial_device *)dev;
/* this device has more reference count */
if (dev->ref_count > 0) return RT_EOK;
LOG_D("open serial device: 0x%08x with open flag: 0x%04x",
dev, oflag);
/* check device flag with the open flag */
@@ -751,7 +754,7 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
serial = (struct rt_serial_device *)dev;
/* this device has more reference count */
if (dev->ref_count > 1) return RT_EOK;
if (dev->ref_count > 0) return RT_EOK;
if (dev->open_flag & RT_DEVICE_FLAG_INT_RX)
{
@@ -834,7 +837,6 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
#endif /* RT_SERIAL_USING_DMA */
serial->ops->control(serial, RT_DEVICE_CTRL_CLOSE, RT_NULL);
dev->flag &= ~RT_DEVICE_FLAG_ACTIVATED;
return RT_EOK;
}