Ricoh Drivers for Ubuntu 10.10
If you try to compile r5u870 driver for Ricoh webcams under Ubuntu 10.10 you’ll fail due to a recent renaming of some functions in the linux kernel.
In particular:
usb_buffer_alloc() is renamed to usb_alloc_coherent() usb_buffer_free() is renamed to usb_free_coherent()
For more information: http://kerneltrap.org/mailarchive/git-commits-head/2010/4/30/32383
To avoid this problem, make this substitution in the usbcam_util.c file that can be found here: ttp://www.palmix.org/download/r5u870_k2.6.30_i386.tar.bz2
inet_ntop() for Win32
Like 4 years ago I made a little project for the operating system 2 class. I had to write an application capable of handling multiple file transfers for both Win32 and Linux. During the coding of the socket-side of the application I encountered an awkward problem: why the hell win32 does not have a compatibility function for the inet_ntop()?
Only recently, for Vista and 7, Microsoft introduced the InetNtop() function: http://tinyurl.com/3xrwaer
If you have to write something that needs to run on XP too (that still seems to be the most used operating system for home users: http://tinyurl.com/2w5ed8n ) just try this code :)
const char* inet_ntop(int af, const void* src, char* dst, int cnt){ struct sockaddr_in srcaddr; memset(&srcaddr, 0, sizeof(struct sockaddr_in)); memcpy(&(srcaddr.sin_addr), src, sizeof(srcaddr.sin_addr)); srcaddr.sin_family = af; if (WSAAddressToString((struct sockaddr*) &srcaddr, sizeof(struct sockaddr_in), 0, dst, (LPDWORD) &cnt) != 0) { DWORD rv = WSAGetLastError(); printf("WSAAddressToString() : %d\n",rv); return NULL; } return dst; }