Maxim Integrated 73M1822/73M1922 Hardware Module for SMDK412 - Manual (Page 21)

UG_1x22_054 73M1822/73M1922 Hardware Module for SMDK412 User Guide
Rev. 1.1 21
4.6 ioctl
Description
The driver, while accessed from the kernel space, does not require the calling of a specific IOCTL
command. The following sections detail the equivalent exported direct function calls that are available in
the Kernel space.
4.6.1 tsc_1x22_rs232_get
Description
Retrieves the current status of the RS232 RTS, DTS, CTR and DTR pins.
IOCTL Equivalent
TSC_1X22_MAFE_GET_RS232
Prototype
unsigned char tsc_1x22_rs232_get(void);
Parameters
Data Type Name Description
Void NA NA
Return Values
Data Type Description
unsigned char See RS232 #defines.
4.6.2 tsc_1x22_rs232_set
Description
Sets the current status of the RS232 RTS,DTS,CTR and DTR pins and then returns the resulting status
via call to tsc_1x22_rs232_get.
IOCTL Equivalent
TSC_1X22_MAFE_SET_RS232
Prototype
unsigned char tsc_1x22_rs232_set(unsigned char RS232);
Parameters
Data Type Name Description
unsigned char RS232 Bits to set. See RS232 #defines .
Return Values
Data Type Description
unsigned char See tsc_1x22_rs232_get .