#include <iostream>
#include <fstream>

int main()
{
fstream ofile;

ofile.open("/root/pxadev/rootfs_full/home/root/pxa27x_gpio.ko", ios_base::out | ios_base::in | ios_base::binary);

if(!ofile.is_open())
{
cerr<<" Could not open file!\n";
}

char ch= '0x5';
ofile.read(reinterpret_cast<char *>(&ch), sizeof(ch));
ofile.write(reinterpret_cast<char *>(&ch), sizeof(ch));


ofile.close();

return 0;
}