| 内核版本:2.6.30.4 在编译内核,make menuconfig,将i2c,触摸屏等驱动选择编译进内核(built-in),按理说在内核启动时,应该加载这些模块,结果内核启动后,cat /porc/devices 未发现这些驱动。 /dev 目录下ls也看不到对应设备,在启动信息中也未发现相应的打印信息。可以确定是未加载。请问是什么原因。附上我的内核启动信息。
 Uncompressing Linux.............................................................
 ................................................................................
 done, booting the kernel.
 Linux version 2.6.30.4-EmbedSky (root@loveru) (gcc version 3.4.5) #4 Sat Apr 26
 21:39:11 CST 2014
 CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
 CPU: VIVT data cache, VIVT instruction cache
 Machine: TQ2440
 Memory policy: ECC disabled, Data cache writeback
 CPU S3C2440A (id 0x32440001)
 S3C24XX Clocks, (c) 2004 Simtec Electronics
 S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz
 CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
 Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
 Kernel command line: noinitrd mem=64M console=ttySAC0 root=/dev/nfs nfsroot=192.
 168.110.131:/home/hit_wy/study/tq2440/rootfs ip=192.168.110.199:192.168.110.131:
 192.168.110.1:255.255.255.0::eth0:off
 NR_IRQS:85
 irq: clearing pending ext status 00080000
 irq: clearing subpending status 00000002
 PID hash table entries: 256 (order: 8, 1024 bytes)
 Console: colour dummy device 80x30
 console [ttySAC0] enabled
 Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
 Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
 Memory: 64MB = 64MB total
 Memory: 60280KB available (3944K code, 408K data, 236K init, 0K highmem)
 SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
 Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)
 Mount-cache hash table entries: 512
 CPU: Testing write buffer coherency: ok
 net_namespace: 296 bytes
 NET: Registered protocol family 16
 S3C2440: Initialising architecture
 S3C2440: IRQ Support
 S3C24XX DMA Driver, (c) 2003-2004,2006 Simtec Electronics
 DMA channel 0 at c4808000, irq 33
 DMA channel 1 at c4808040, irq 34
 DMA channel 2 at c4808080, irq 35
 DMA channel 3 at c48080c0, irq 36
 S3C244X: Clock Support, DVS off
 bio: create slab <bio-0> at 0
 SCSI subsystem initialized
 usbcore: registered new interface driver usbfs
 usbcore: registered new interface driver hub
 usbcore: registered new device driver usb
 cfg80211: Calling CRDA to update world regulatory domain
 NET: Registered protocol family 2
 IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
 TCP established hash table entries: 2048 (order: 2, 16384 bytes)
 TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
 TCP: Hash tables configured (established 2048 bind 2048)
 TCP reno registered
 NET: Registered protocol family 1
 yaffs Apr 26 2014 21:29:29 Installing.
 msgmni has been set to 117
 alg: No test for stdrng (krng)
 io scheduler noop registered (default)
 Console: switching to colour frame buffer device 60x17
 fb0: s3c2410fb frame buffer device
 backlight initialized
 s3c2440-uart.0: tq2440_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440
 s3c2440-uart.1: tq2440_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440
 s3c2440-uart.2: tq2440_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440
 loop: module loaded
 Driver 'sd' needs updating - please use bus_type methods
 dm9000 Ethernet Driver, V1.31
 Now use the default MAC address: 10:23:45:67:89:ab
 eth0 (dm9000): not using net_device_ops yet
 eth0: dm9000e at c480c000,c4810004 IRQ 51 MAC: 10:23:45:67:89:ab (EmbedSky)
 S3C24XX NAND Driver, (c) 2004 Simtec Electronics
 s3c2440-nand s3c2440-nand: Tacls=2, 20ns Twrph0=3 30ns, Twrph1=2 20ns
 NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bi
 t)
 NAND_ECC_NONE selected by board driver. This is not recommended !!
 Scanning device for bad blocks
 Bad eraseblock 159 at 0x0000013e0000
 Bad eraseblock 786 at 0x000006240000
 Bad eraseblock 1154 at 0x000009040000
 Bad eraseblock 1297 at 0x00000a220000
 Bad eraseblock 1299 at 0x00000a260000
 Bad eraseblock 1881 at 0x00000eb20000
 Creating 3 MTD partitions on "NAND 256MiB 3,3V 8-bit":
 0x000000000000-0x000000040000 : "EmbedSky_Board_uboot"
 0x000000200000-0x000000500000 : "EmbedSky_Board_kernel"
 0x000000500000-0x000010000000 : "EmbedSky_Board_yaffs2"
 ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
 s3c2410-ohci s3c2410-ohci: S3C24XX OHCI
 s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1
 s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000
 usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
 usb usb1: Product: S3C24XX OHCI
 usb usb1: Manufacturer: Linux 2.6.30.4-EmbedSky ohci_hcd
 usb usb1: SerialNumber: s3c24xx
 usb usb1: configuration #1 chosen from 1 choice
 hub 1-0:1.0: USB hub found
 hub 1-0:1.0: 2 ports detected
 Initializing USB Mass Storage driver...
 usbcore: registered new interface driver usb-storage
 USB Mass Storage support registered.
 usbcore: registered new interface driver usbserial
 usbserial: USB Serial Driver core
 USB Serial support registered for pl2303
 usbcore: registered new interface driver pl2303
 pl2303: Prolific PL2303 USB to serial adaptor driver
 s3c2410_udc: debugfs dir creation failed -19
 s3c2440-usbgadget s3c2440-usbgadget: S3C2440: increasing FIFO to 128 bytes
 mice: PS/2 mouse device common for all mice
 S3C24XX RTC, (c) 2004,2006 Simtec Electronics
 s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling
 s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0
 Linux video capture interface: v2.00
 usbcore: registered new interface driver ov511
 ov511: v1.64 for Linux 2.5:ov511 USB Camera Driver
 SE401 usb camera driver version 0.24 registering
 usbcore: registered new interface driver se401
 usbcore: registered new interface driver stv680
 stv680 [usb_stv680_init:1550]
 STV(i): usb camera driver version v0.25 registering<6>stv680: v0.25:STV0680 USB
 Camera Driver
 usbcore: registered new interface driver zr364xx
 zr364xx: Zoran 364xx
 usbcore: registered new interface driver stkwebcam
 sn9c102: V4L2 driver for SN9C1xx PC Camera Controllers v1:1.47pre49
 usbcore: registered new interface driver sn9c102
 et61x251: V4L2 driver for ET61X[12]51 PC Camera Controllers v1:1.09
 usbcore: registered new interface driver et61x251
 pwc: Philips webcam module version 10.0.13 loaded.
 pwc: Supports Philips PCA645/646, PCVC675/680/690, PCVC720[40]/730/740/750 & PCV
 C830/840.
 pwc: Also supports the Askey VC010, various Logitech Quickcams, Samsung MPC-C10
 and MPC-C30,
 pwc: the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite VCS-UC300 and
 VCS-UM100.
 usbcore: registered new interface driver Philips webcam
 zc0301: V4L2 driver for ZC0301[P] Image Processor and Control Chip v1:1.10
 usbcore: registered new interface driver zc0301
 gspca: main v2.5.0 registered
 usbcore: registered new interface driver conex
 conex: registered
 usbcore: registered new interface driver etoms
 etoms: registered
 usbcore: registered new interface driver finepix
 finepix: registered
 usbcore: registered new interface driver mars
 mars: registered
 usbcore: registered new interface driver mr97310a
 mr97310a: registered
 usbcore: registered new interface driver ov519
 ov519: registered
 usbcore: registered new interface driver ov534
 ov534: registered
 usbcore: registered new interface driver pac207
 pac207: registered
 usbcore: registered new interface driver pac7311
 pac7311: registered
 usbcore: registered new interface driver sonixb
 sonixb: registered
 usbcore: registered new interface driver sonixj
 sonixj: registered
 usbcore: registered new interface driver spca500
 spca500: registered
 usbcore: registered new interface driver spca501
 spca501: registered
 usbcore: registered new interface driver spca505
 spca505: registered
 usbcore: registered new interface driver spca506
 spca506: registered
 usbcore: registered new interface driver spca508
 spca508: registered
 usbcore: registered new interface driver spca561
 spca561: registered
 usbcore: registered new interface driver sq905
 sq905: registered
 usbcore: registered new interface driver sq905c
 sq905c: registered
 usbcore: registered new interface driver sunplus
 sunplus: registered
 usbcore: registered new interface driver stk014
 stk014: registered
 usbcore: registered new interface driver t613
 t613: registered
 usbcore: registered new interface driver tv8532
 tv8532: registered
 usbcore: registered new interface driver vc032x
 vc032x: registered
 usbcore: registered new interface driver zc3xx
 zc3xx: registered
 usbcore: registered new interface driver ALi m5602
 ALi m5602: registered
 usbcore: registered new interface driver STV06xx
 STV06xx: registered
 usbcore: registered new interface driver ibmcam
 usbcore: registered new interface driver ultracam
 konicawc: v1.4:Konica Webcam driver
 usbcore: registered new interface driver konicawc
 
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