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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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4
components/drivers/misc/rt_zero.c
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@@ -12,13 +12,13 @@
static struct rt_device zero_dev;
static rt_size_t zero_read (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
static rt_ssize_t zero_read (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
{
rt_memset(buffer, 0, size);
return size;
}
static rt_size_t zero_write (rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
static rt_ssize_t zero_write (rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
return size;
}