Communication between c++ project and SPI driver

[Mactub]

Hi

I am moving some code for to work with SPI interface from windows to Linux SUSE platform and for to make it working I have to communicate with some small SPI driver, I have few libraries generated by that driver:

libi2cbrdg.a
libi2cbrdg.la
libi2cbrdg.so
libi2cbrdg.so.1
libi2cbrdg.so.1.1.0

I am compiling my project with following makefile:

comp: ErrorCodes.h Errors.h FrameDll.h FrameDllHeader.h Framework.h Functions.h TargetProcessor.h Layout1.h ModCommon.h ModScalerDB.h ProxyIDs.h SPIProxy.h SPITuning.cpp ModBiquad.h ModCommon.h ModDeinterleave.h ModFloatToFract32.h
g++ -g -L./lib -li2cbrdg ErrorCodes.h Errors.h FrameDll.h FrameDllHeader.h Framework.h Functions.h TargetProcessor.h Layout1.h ModCommon.h ModScalerDB.h ProxyIDs.h SPIProxy.h SPITuning.cpp -o comp.o

Output:

SPIProxy.h: In member function ‘virtual int CSPIProxy::_Read(void*, int)’:
SPIProxy.h:55: error: ‘U2C_IoWrite’ was not declared in this scope
SPIProxy.h:56: error: ‘U2C_SpiRead’ was not declared in this scope
SPIProxy.h: In member function ‘virtual int CSPIProxy::_Write(const void*, int)’:
SPIProxy.h:65: error: ‘U2C_IoWrite’ was not declared in this scope
SPIProxy.h:66: error: ‘U2C_SpiWrite’ was not declared in this scope
SPIProxy.h: In member function ‘virtual int CSPIProxy::Open(unsigned int)’:
SPIProxy.h:185: error: ‘U2C_GetDeviceCount’ was not declared in this scope
SPIProxy.h:192: error: ‘U2C_OpenDevice’ was not declared in this scope
SPIProxy.h:200: error: ‘U2C_SpiSetConfig’ was not declared in this scope
SPIProxy.h:201: error: ‘U2C_SPI_FREQ_200KHZ’ was not declared in this scope
SPIProxy.h:201: error: ‘U2C_SpiSetFreq’ was not declared in this scope
SPIProxy.h:202: error: ‘U2C_SetIoDirection’ was not declared in this scope
SPIProxy.h:203: error: ‘U2C_IoWrite’ was not declared in this scope
SPIProxy.h: In member function ‘virtual int CSPIProxy::_Read(void*, int)’:
SPIProxy.h:55: error: ‘U2C_IoWrite’ was not declared in this scope
SPIProxy.h:56: error: ‘U2C_SpiRead’ was not declared in this scope
SPIProxy.h: In member function ‘virtual int CSPIProxy::_Write(const void*, int)’:
SPIProxy.h:65: error: ‘U2C_IoWrite’ was not declared in this scope
SPIProxy.h:66: error: ‘U2C_SpiWrite’ was not declared in this scope
SPIProxy.h: In member function ‘virtual int CSPIProxy::Open(unsigned int)’:
SPIProxy.h:185: error: ‘U2C_GetDeviceCount’ was not declared in this scope
SPIProxy.h:192: error: ‘U2C_OpenDevice’ was not declared in this scope
SPIProxy.h:200: error: ‘U2C_SpiSetConfig’ was not declared in this scope
SPIProxy.h:201: error: ‘U2C_SPI_FREQ_200KHZ’ was not declared in this scope
SPIProxy.h:201: error: ‘U2C_SpiSetFreq’ was not declared in this scope
SPIProxy.h:202: error: ‘U2C_SetIoDirection’ was not declared in this scope
SPIProxy.h:203: error: ‘U2C_IoWrite’ was not declared in this scope

But still as u see I have some functions missed I know that they are in these libraries, whats wrong? People, please, help?

[Rubberman]

What do you mean by the SPI interface? I am somewhat familiar with the SPI functions for PostgreSQL. Is that what you are getting at? Or something else?

[Mactub]

What do you mean by the SPI interface? I am somewhat familiar with the SPI functions for PostgreSQL. Is that what you are getting at? Or something else?

Nop, nothing to do with SQL, I am trying to adjust communication with piece of hardware through some small adapter that speaks SPI, so my code has to be "connected" to driver for this adapter, these libraries belong to that driver, and functions that have to perform connection are in these libraries but I don't see any reason way compiler cannot see them after I am doing linking ?

[coopstah13]

I don't think .h files are typically put in the compile line of the makefile, or anywhere in the makefile for that matter, unless they actually have code to compile inside of them, do they?

[Rubberman]

So, are you trying to write a device driver (kernel module), or is this strictly user-space code? The rules are very different.