make[3]: Entering directory `/root/linux-2.4.27-vrs1-ATMEL/drivers/video'
/usr/local/arm/2.95.3/bin/arm-linux-gcc -D__KERNEL__ -I/root/linux-2.4.27-vrs1-ATMEL/include -Wall -Wstrict-prototypes -Wno-trigraphs -Os -fno-strict-aliasing -fno-common -Uarm -fno-common -pipe -mapcs-32 -D__LINUX_ARM_ARCH__=4 -march=armv4 -mtune=arm9tdmi -mshort-load-bytes -msoft-float -Uarm -nostdinc -iwithprefix
include -DKBUILD_BASENAME=vgacon -c -o vgacon.o vgacon.c
vgacon.c: In function `write_vga':
vgacon.c:156: warning: cast to pointer from integer of different size
vgacon.c:157: warning: cast to pointer from integer of different size
vgacon.c: In function `vgacon_startup':
vgacon.c:283: `PCIMEM_BASE' undeclared (first use in this function)
vgacon.c:283: (Each undeclared identifier is reported only once
vgacon.c:283: for each function it appears in.)
vgacon.c: In function `vgacon_set_cursor_size':



Somebody have the same problem and how to resolved it?some idea?
Regards
vgacon.c:414: warning: cast to pointer from integer of different size
vgacon.c:415: warning: cast to pointer from integer of different size
vgacon.c:424: warning: cast to pointer from integer of different size
vgacon.c:425: warning: cast to pointer from integer of different size
vgacon.c: In function `vga_vesa_blank':
vgacon.c:533: warning: cast to pointer from integer of different size
vgacon.c:537: warning: cast to pointer from integer of different size
vgacon.c:595: warning: cast to pointer from integer of different size
vgacon.c: In function `vga_vesa_unblank':
vgacon.c:605: warning: cast to pointer from integer of different size
vgacon.c:606: warning: cast to pointer from integer of different size
vgacon.c:620: warning: cast to pointer from integer of different size
vgacon.c:626: warning: cast to pointer from integer of different size
vgacon.c: In function `vgacon_do_font_op':
vgacon.c:710: `PCIMEM_BASE' undeclared (first use in this function)
vgacon.c:823: warning: cast to pointer from integer of different size
vgacon.c:828: warning: cast to pointer from integer of different size
vgacon.c:704: warning: `charmap' might be used uninitialized in this function
vgacon.c: In function `vgacon_adjust_height':
vgacon.c:863: warning: cast to pointer from integer of different size
vgacon.c:864: warning: cast to pointer from integer of different size
vgacon.c:865: warning: cast to pointer from integer of different size
vgacon.c:866: warning: cast to pointer from integer of different size
vgacon.c:876: warning: cast to pointer from integer of different size
vgacon.c:877: warning: cast to pointer from integer of different size
vgacon.c:878: warning: cast to pointer from integer of different size
vgacon.c:879: warning: cast to pointer from integer of different size
vgacon.c:880: warning: cast to pointer from integer of different size
vgacon.c:881: warning: cast to pointer from integer of different size
make[3]: *** [vgacon.o] Error 1
make[3]: Leaving directory `/root/linux-2.4.27-vrs1-ATMEL/drivers/video'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory `/root/linux-2.4.27-vrs1-ATMEL/drivers/video'
make[1]: *** [_subdir_video] Error 2
make[1]: Leaving directory `/root/linux-2.4.27-vrs1-ATMEL/drivers'
make: *** [_dir_drivers] Error 2

reply myself,unset the VGA console driver will compile ok.

another question:

how to get the major number of a device driver ?
so can use this number to mknod for ramdisk if ramdisk have not include this device,Thanks!

and sombody have some idea about the number of device dynamic detected?

HAPPY NEW YEAR!