bskdany opened a new issue, #17273:
URL: https://github.com/apache/nuttx/issues/17273
### Description / Steps to reproduce the issue
The RN2483 with the `rn2xx3` driver hangs on read
The following is the problematic part, situated in `rn2xx3_read()`
```
ret = file_read(&priv->uart, &hex_byte, 2);
if (ret < 2)
{
goto early_ret;
}
```
The device seems to always return 1 byte of data instead of 2, thus hanging
the system
Switching to a double single byte read fixed the issue
```
ret = file_read(&priv->uart, &hex_byte, 1);
if (ret < 1)
{
goto early_ret;
}
ret = file_read(&priv->uart, &hex_byte[1], 1);
if (ret < 1)
{
goto early_ret;
}
```
I do not find this to be an elegant solution, is there a different read
function that could wait until the buffer is full?
### On which OS does this issue occur?
[OS: Mac]
### What is the version of your OS?
MacOS 15.6.1
### NuttX Version
releases/12.12
### Issue Architecture
[Arch: arm64]
### Issue Area
[Area: Drivers]
### Host information
_No response_
### Verification
- [x] I have verified before submitting the report.
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