Hi, I am wondering why most of device drivers like (uart.c, enet.c) does not use static buffer ( which defined as array with definite size in source code) . Those drivers use kmalloc, get_free_page functions to allocate buffer instead of using static buffer. Actually I have attempt to use static buffer. But virt_to_phys functions didn't work properly. returned physical address was out of physical address range. The address was just (virt. addr - 0xC0000000).
Some one explain those things to me, pleeease. ;) Thanks in advance. -- Hojin jhfami at yahoo.co.kr ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
