Acrosser Technology AAD-C622A Series, Руководство пользователя

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10. Get/set the Shutdown delay.
The power subsystem connects to the main system via the COM port. On the
Linux platform, the actual port number to which the Power Subsystem connects
is determined by the Linux. The default supported COM interfaces on Linux are
COM1~COM4. Users must take extra steps to configure Linux kernel in order to
support COM ports which do not fall into the range COM1 ~ COM4. Please refer to
Appendix A for more information. Users don’t need extraordinary setup on Windows
platform to support COM ports.
4.2. API List and Descriptions
4.2.1. General
Syntax: lib_init(void)
Description: library initialization, using this library must be call this
function first.
Note: initialization may be wait 1 mins, because scan pic
port.
Parameters: None.
Return Value: 0:Successful, -1:Fail.
Syntax: lib_close(void)
Description:
library close, when you not used this library must be call
this function.
Parameters: None.
Return Value: 0:Successful, -1:Fail.
4.2.2. GPIO and Watchdog
4.2.2.1. GPIO
Syntax: int get_gpo_status(int pin)
Description: Get the status of GPIO output pins.
Parameters: This function fills in an integer variable as the parameter.
The pin0 ~ 3 is the status of the output pins
Return Value: 0 or 1 (0 is Low, 1 is High)