Description
Hello
How to use CreateFile for open serial port COM1 ?
I created the exe program for testing, see the picture and
GetLastError() return 2, ERROR_FILE_NOT_FOUND
OS version 0.4.3
Thank
PS:COM1 driver will be updated on the Device manager.
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hCom = CreateFile(
|
"COM1", |
GENERIC_READ| GENERIC_WRITE,
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0, /* comm devices must be opened w/exclusive-access */ |
NULL, /* no security attrs */ |
OPEN_EXISTING, /* comm devices must use OPEN_EXISTING */ |
0, /* not overlapped I/O FILE_FLAG_OVERLAPPED*/ |
NULL /* hTemplate must be NULL for comm devices */ |
);
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if( hCom==INVALID_HANDLE_VALUE) |
eFilerr = GetLastError( );
|
Attachments
Issue Links
- is blocked by
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CORE-14688 ACPI/PNP Resource Assignment is broken
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- Open
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- Open
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- Resolved
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- is duplicated by
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- Closed
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- relates to
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- Open
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