linux SD卡驱动问题
drivers/built-in.o: In function `s3cmci_send_request':
hid-debug.c:(.text+0x7d82c): undefined reference to `s3c2410_dma_devconfig'
hid-debug.c:(.text+0x7d844): undefined reference to `s3c2410_dma_config'
hid-debug.c:(.text+0x7d850): undefined reference to `s3c2410_dma_set_buffdone_fn'
hid-debug.c:(.text+0x7d85c): undefined reference to `s3c2410_dma_setflags'
hid-debug.c:(.text+0x7d870): undefined reference to `s3c2410_dma_ctrl'
hid-debug.c:(.text+0x7d8c4): undefined reference to `s3c2410_dma_enqueue'
hid-debug.c:(.text+0x7d8e4): undefined reference to `s3c2410_dma_ctrl'
hid-debug.c:(.text+0x7d948): undefined reference to `s3c2410_dma_ctrl'
drivers/built-in.o: In function `pio_tasklet':
hid-debug.c:(.text+0x7e55c): undefined reference to `s3c2410_dma_ctrl'
drivers/built-in.o: In function `s3cmci_remove':
hid-debug.c:(.devexit.text+0xc0): undefined reference to `s3c2410_dma_free'
drivers/built-in.o: In function `s3cmci_probe':
hid-debug.c:(.devinit.text+0x904): undefined reference to `s3c2410_dma_request'
make: *** [.tmp_vmlinux1] Error 1