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Bugfix: Use correct path when opening serial devices on Windows

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This commit is contained in:
Matthew Mets
2021-06-30 19:32:35 +00:00
committed by Adam Honse
parent 22117c7ece
commit 07df6b7a1f
1 changed files with 8 additions and 3 deletions
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11
serial_port/serial_port.cpp
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@@ -53,7 +53,12 @@ bool serial_port::serial_open()
| Windows-specific code path for serial port opening |
\*-----------------------------------------------------*/
#ifdef _WIN32
file_descriptor = CreateFile(port_name, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
// On Windows, ports above 9 need to have "\\.\" prepended to their path. For ports below 9, this is optional.
// https://support.microsoft.com/en-us/topic/howto-specify-serial-ports-larger-than-com9-db9078a5-b7b6-bf00-240f-f749ebfd913e
char full_path[100];
snprintf(full_path, sizeof(full_path), "\\\\.\\%s", port_name);
file_descriptor = CreateFile(full_path, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
if((int)file_descriptor < 0)
{
@@ -195,7 +200,7 @@ bool serial_port::serial_open(const char * name)
\*---------------------------------------------------------*/
bool serial_port::serial_open(const char* name, unsigned int baud)
{
strcpy(port_name, name);
snprintf(port_name,sizeof(port_name),"%s",name);
baud_rate = baud;
return serial_open();
}
@@ -210,7 +215,7 @@ void serial_port::serial_close()
| Windows-specific code path for serial close |
\*-----------------------------------------------------*/
#ifdef _WIN32
CloseHandle(file_descriptor);
#endif
/*-----------------------------------------------------*\