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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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6
components/drivers/i2c/i2c-bit-ops.c
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@@ -186,7 +186,7 @@ static rt_int32_t i2c_readb(struct rt_i2c_bus_device *bus)
return data;
}
static rt_size_t i2c_send_bytes(struct rt_i2c_bus_device *bus,
static rt_ssize_t i2c_send_bytes(struct rt_i2c_bus_device *bus,
struct rt_i2c_msg *msg)
{
rt_int32_t ret;
@@ -240,7 +240,7 @@ static rt_err_t i2c_send_ack_or_nack(struct rt_i2c_bus_device *bus, int ack)
return RT_EOK;
}
static rt_size_t i2c_recv_bytes(struct rt_i2c_bus_device *bus,
static rt_ssize_t i2c_recv_bytes(struct rt_i2c_bus_device *bus,
struct rt_i2c_msg *msg)
{
rt_int32_t val;
@@ -366,7 +366,7 @@ static rt_err_t i2c_bit_send_address(struct rt_i2c_bus_device *bus,
return RT_EOK;
}
static rt_size_t i2c_bit_xfer(struct rt_i2c_bus_device *bus,
static rt_ssize_t i2c_bit_xfer(struct rt_i2c_bus_device *bus,
struct rt_i2c_msg msgs[],
rt_uint32_t num)
{

4
components/drivers/i2c/i2c_dev.c
View File

@@ -20,7 +20,7 @@
#endif
#include <rtdbg.h>
static rt_size_t i2c_bus_device_read(rt_device_t dev,
static rt_ssize_t i2c_bus_device_read(rt_device_t dev,
rt_off_t pos,
void *buffer,
rt_size_t count)
@@ -40,7 +40,7 @@ static rt_size_t i2c_bus_device_read(rt_device_t dev,
return rt_i2c_master_recv(bus, addr, flags, (rt_uint8_t *)buffer, count);
}
static rt_size_t i2c_bus_device_write(rt_device_t dev,
static rt_ssize_t i2c_bus_device_write(rt_device_t dev,
rt_off_t pos,
const void *buffer,
rt_size_t count)