unknown 
hi I try to access gpio (via its native functions such as //////////// s3c2410_gpio_cfgpin(S3C2410_GPA(0), S3C2410_GPA0_ADDR0); s3c2410_gpio_cfgpin(S3C2410_GPE(8), S3C2410_GPE8_SDDAT1); s3c2410_gpio_getcfg(unsigned int pin); void s3c2410_gpio_pullup(unsigned int pin, unsigned int to); unsigned int s3c2410_gpio_getpin(unsigned int pin); void s3c2410_gpio_setpin(unsigned int pin, unsigned int to); int s3c2410_gpio_getirq(unsigned int pin); /////////// ) in QtE4.6.3; but the required header files ( /////////// #include <linux/gpio.h> #include <mach/regs-gpio.h> #include <mach/hardware.h> /////////// ) are not available in /opt/FriendlyARM/toolschain/4.4.3/arm-none-linux-gnueabi/sys-root/usr/include/ . I included the available path INCLUDEPATH += /opt/FriendlyARM/mini2440/linux-2.6.32.2/include/ (both in project and bashrc files); but I receive errors (that some are from conflict between similar headers from two above path) how can I overcome the problem? have I to use arm-linux- instead of arm-none-linux-gnueabi- to compile the QtE? thanks in advance