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rt_device_write/read return data type as rt_ssize_t

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rt_ssize_t can give negative error code, which follows the unix style correctly
This commit is contained in:
Meco Man
2023-02-05 18:35:33 -05:00
committed by Man, Jianting (Meco)
parent 890c1c9264
commit f58d3c5200
308 changed files with 671 additions and 685 deletions
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8
bsp/raspberry-pi/raspi3-64/driver/drv_i2c.c
View File

@@ -108,10 +108,10 @@ struct raspi_i2c_hw_config
#if (defined(BSP_USING_I2C0) || defined(BSP_USING_I2C1))
static rt_size_t raspi_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
static rt_ssize_t raspi_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
struct rt_i2c_msg msgs[],
rt_uint32_t num);
static rt_size_t raspi_i2c_slv_xfer(struct rt_i2c_bus_device *bus,
static rt_ssize_t raspi_i2c_slv_xfer(struct rt_i2c_bus_device *bus,
struct rt_i2c_msg msgs[],
rt_uint32_t num);
static rt_err_t raspi_i2c_bus_control(struct rt_i2c_bus_device *bus,
@@ -119,7 +119,7 @@ static rt_err_t raspi_i2c_bus_control(struct rt_i2c_bus_device *bus,
rt_uint32_t);
static rt_uint32_t i2c_byte_wait_us = 0;
static rt_size_t raspi_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
static rt_ssize_t raspi_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
struct rt_i2c_msg msgs[],
rt_uint32_t num)
{
@@ -146,7 +146,7 @@ static rt_size_t raspi_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
return (reason == 0)? i : 0;
}
static rt_size_t raspi_i2c_slv_xfer(struct rt_i2c_bus_device *bus,
static rt_ssize_t raspi_i2c_slv_xfer(struct rt_i2c_bus_device *bus,
struct rt_i2c_msg msgs[],
rt_uint32_t num)
{

4
bsp/raspberry-pi/raspi3-64/driver/drv_rtc.c
View File

@@ -93,13 +93,13 @@ static rt_err_t raspi_rtc_control(rt_device_t dev, int cmd, void *args)
return RT_EOK;
}
static rt_size_t raspi_rtc_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
static rt_ssize_t raspi_rtc_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
{
raspi_rtc_control(dev, RT_DEVICE_CTRL_RTC_GET_TIME, buffer);
return size;
}
static rt_size_t raspi_rtc_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
static rt_ssize_t raspi_rtc_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
raspi_rtc_control(dev, RT_DEVICE_CTRL_RTC_SET_TIME, (void *)buffer);
return size;