mirror of https://github.com/acidanthera/audk.git
13d378fc82
SerialSetAttributes is meant to match the behavior of the function
EFI_SERIAL_IO_PROTOCOL.SetAttributes() in the UEFI spec (v2.7). This
means the function can only return:
- EFI_SUCCESS
- EFI_INVALID_PARAMETER
- EFI_DEVICE_ERROR
However the function SerialPortSetAttributes may also validly return
EFI_UNSUPPORTED. For instance this is the case of the Xen Console
driver.
EFI_UNSUPPORTED could be also interpreted as "One or more of the attributes
has an unsupported value". So return EFI_INVALID_PARAMETER in that case.
Lastly, to prevent another return slipping in the future, all the errors
but EFI_INVALID_PARAMETER and EFI_UNSUPPORTED will return
EFI_DEVICE_ERROR.
Contributed-under: Tianocore Contribution Agreement 1.1
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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| .. | ||
| AArch64 | ||
| Arm | ||
| Ebc | ||
| Guid | ||
| Ia32 | ||
| IndustryStandard | ||
| Ipf | ||
| Library | ||
| Pi | ||
| Ppi | ||
| Protocol | ||
| Uefi | ||
| X64 | ||
| Base.h | ||
| PiDxe.h | ||
| PiMm.h | ||
| PiPei.h | ||
| PiSmm.h | ||
| Uefi.h | ||