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问题： 急，按键驱动挂载不上,求各路大神帮忙，谢谢
描述:
最开始，首先查找设备号的挂载情况
root@BoxLab:~# cat /proc/devices
Character devices:
1 mem
4 ttyS
5 /dev/tty
5 /dev/console
5 /dev/ptmx
10 misc
13 input
21 sg
29 fb
81 video4linux
89 i2c
108 ppp
116 alsa
128 ptm
136 pts
166 ttyACM
180 usb
188 ttyUSB
189 usb_device
204 ttySAC
216 rfcomm
243 ump
244 mali
252 media
253 ttyGS
254 rtc
Block devices:
1 ramdisk
259 blkext
7 loop
8 sd
65 sd
66 sd
67 sd
68 sd
69 sd
70 sd
71 sd
128 sd
129 sd
130 sd
131 sd
132 sd
133 sd
134 sd
135 sd
179 mmc
254 device-mapper
查看内存情况：
root@BoxLab:~# cat /proc/iomem
03830000-038300ff : samsung-i2s.0
03830000-038300ff : samsung-i2s
05000000-0500ffff : smsc911x
05000000-0500ffff : smsc911x
10060000-10060fff : s3c2410-wdt
10060000-10060fff : s3c2410-wdt
10070000-100700ff : s3c64xx-rtc
10070000-100700ff : s3c64xx-rtc
100a0000-100a001f : samsung-keypad
100b0000-100b0fff : s5p-tvout-cec
100b0000-100b0fff : s5p-tvout-cec
10800000-10800fff : s5p-fimg2d
10800000-10800fff : s5p-fimg2d
10a40000-10a40fff : s5p-sysmmu.15
10a40000-10a40fff : s5p-sysmmu.15
11800000-11800fff : s3c-fimc.0
11800000-11800fff : s3c-fimc
11810000-11810fff : s3c-fimc.1
11810000-11810fff : s3c-fimc
11820000-11820fff : s3c-fimc.2
11820000-11820fff : s3c-fimc
11830000-11830fff : s3c-fimc.3
11830000-11830fff : s3c-fimc
11840000-1184ffff : s5p-jpeg
11840000-1184ffff : s5p-jpeg
11880000-11880fff : s3c-csis.0
11880000-11880fff : s3c-csis
11890000-11890fff : s3c-csis.1
11890000-11890fff : s3c-csis
11a20000-11a20fff : s5p-sysmmu.1
11a20000-11a20fff : s5p-sysmmu.1
11a30000-11a30fff : s5p-sysmmu.2
11a30000-11a30fff : s5p-sysmmu.2
11a40000-11a40fff : s5p-sysmmu.3
11a40000-11a40fff : s5p-sysmmu.3
11a50000-11a50fff : s5p-sysmmu.4
11a50000-11a50fff : s5p-sysmmu.4
11a60000-11a60fff : s5p-sysmmu.5
11a60000-11a60fff : s5p-sysmmu.5
11c00000-11c07fff : s3cfb.0
11c00000-11c07fff : s3cfb
12480000-12480fff : s3c-usbgadget
12480000-12480fff : s3c-usbgadget
12530000-12530fff : s3c-sdhci.2
12530000-12530fff : mmc1
12540000-12540fff : s3c-sdhci.3
12540000-12540fff : mmc2
12550000-12550fff : dw_mmc
12550000-12550fff : mmc0
12580000-125800ff : s5p-ehci
12680000-12681000 : s3c-pl330.1
12680000-12681000 : s3c-pl330
12690000-12691000 : s3c-pl330.2
12690000-12691000 : s3c-pl330
126c0000-126c1fff : exynos4412-adc
12850000-12851000 : s3c-pl330.0
12850000-12851000 : s3c-pl330
12c00000-12c0ffff : s5p-vp
12c00000-12c0ffff : s5p-vp
12c10000-12c1ffff : s5p-mixer
12c10000-12c1ffff : s5p-mixer
12c20000-12c2ffff : s5p-sdo
12d00000-12dfffff : s5p-hdmi
12d00000-12dfffff : s5p-hdmi
12e20000-12e20fff : s5p-sysmmu.12
12e20000-12e20fff : s5p-sysmmu.12
13000000-13000097 : Mali-400 GP
13001000-1300102f : Mali-400 L2 cache
13003000-13003023 : Mali-400 MMU for GP
13004000-13004023 : Mali-400 MMU for PP 0
13005000-13005023 : Mali-400 MMU for PP 1
13006000-13006023 : Mali-400 MMU for PP 2
13007000-13007023 : Mali-400 MMU for PP 3
13008000-130090ef : Mali-400 PP 0
1300a000-1300b0ef : Mali-400 PP 1
1300c000-1300d0ef : Mali-400 PP 2
1300e000-1300f0ef : Mali-400 PP 3
13400000-1340ffff : s3c-mfc
13400000-1340ffff : s3c-mfc
13620000-13620fff : s5p-sysmmu.13
13620000-13620fff : s5p-sysmmu.13
13630000-13630fff : s5p-sysmmu.14
13630000-13630fff : s5p-sysmmu.14
13800000-138000ff : s5pv210-uart.0
13800000-138000ff : s5pv210-uart
13810000-138100ff : s5pv210-uart.1
13810000-138100ff : s5pv210-uart
13820000-138200ff : s5pv210-uart.2
13820000-138200ff : s5pv210-uart
13830000-138300ff : s5pv210-uart.3
13830000-138300ff : s5pv210-uart
13870000-13870fff : s3c2440-i2c.1
13870000-13870fff : s3c2440-i2c
13890000-13890fff : s3c2440-i2c.3
13890000-13890fff : s3c2440-i2c
138a0000-138a0fff : s3c2440-i2c.4
138a0000-138a0fff : s3c2440-i2c
138b0000-138b0fff : s3c2440-i2c.5
138b0000-138b0fff : s3c2440-i2c
138d0000-138d0fff : s3c2440-i2c.7
138d0000-138d0fff : s3c2440-i2c
138e0000-138e03ff : s5p-i2c-hdmi-phy
138e0000-138e03ff : s5p-i2c-hdmi-phy
13940000-139400ff : s3c64xx-spi.2
13940000-139400ff : s3c64xx-spi
40000000-6dffffff : System RAM
40040000-40933fff : Kernel text
40934000-40a156b7 : Kernel data
70000000-bfefffff : System RAM
挂载时提示：
root@BoxLab:~# insmod keys_drv.ko
[ 615.945684] KEYS_DRV: Device Initialize.
insmod: can't insert 'keys_drv.ko': Device or resource busy
root@BoxLab:~#
root@BoxLab:~# cat /proc/devices //这时多了keyy,设备号是168
Character&nbs
描述:
linux驱动按键驱动挂载出现busy
困惑了好几天的问题，改了设备号，内存映射的地址也改了，驱动名字也换了，还是出现同样的问题最开始，首先查找设备号的挂载情况
root@BoxLab:~# cat /proc/devices
Character devices:
1 mem
4 ttyS
5 /dev/tty
5 /dev/console
5 /dev/ptmx
10 misc
13 input
21 sg
29 fb
81 video4linux
89 i2c
108 ppp
116 alsa
128 ptm
136 pts
166 ttyACM
180 usb
188 ttyUSB
189 usb_device
204 ttySAC
216 rfcomm
243 ump
244 mali
252 media
253 ttyGS
254 rtc
Block devices:
1 ramdisk
259 blkext
7 loop
8 sd
65 sd
66 sd
67 sd
68 sd
69 sd
70 sd
71 sd
128 sd
129 sd
130 sd
131 sd
132 sd
133 sd
134 sd
135 sd
179 mmc
254 device-mapper
查看内存情况：
root@BoxLab:~# cat /proc/iomem
03830000-038300ff : samsung-i2s.0
03830000-038300ff : samsung-i2s
05000000-0500ffff : smsc911x
05000000-0500ffff : smsc911x
10060000-10060fff : s3c2410-wdt
10060000-10060fff : s3c2410-wdt
10070000-100700ff : s3c64xx-rtc
10070000-100700ff : s3c64xx-rtc
100a0000-100a001f : samsung-keypad
100b0000-100b0fff : s5p-tvout-cec
100b0000-100b0fff : s5p-tvout-cec
10800000-10800fff : s5p-fimg2d
10800000-10800fff : s5p-fimg2d
10a40000-10a40fff : s5p-sysmmu.15
10a40000-10a40fff : s5p-sysmmu.15
11800000-11800fff : s3c-fimc.0
11800000-11800fff : s3c-fimc
11810000-11810fff : s3c-fimc.1
11810000-11810fff : s3c-fimc
11820000-11820fff : s3c-fimc.2
11820000-11820fff : s3c-fimc
11830000-11830fff : s3c-fimc.3
11830000-11830fff : s3c-fimc
11840000-1184ffff : s5p-jpeg
11840000-1184ffff : s5p-jpeg
11880000-11880fff : s3c-csis.0
11880000-11880fff : s3c-csis
11890000-11890fff : s3c-csis.1
11890000-11890fff : s3c-csis
11a20000-11a20fff : s5p-sysmmu.1
11a20000-11a20fff : s5p-sysmmu.1
11a30000-11a30fff : s5p-sysmmu.2
11a30000-11a30fff : s5p-sysmmu.2
11a40000-11a40fff : s5p-sysmmu.3
11a40000-11a40fff : s5p-sysmmu.3
11a50000-11a50fff : s5p-sysmmu.4
11a50000-11a50fff : s5p-sysmmu.4
11a60000-11a60fff : s5p-sysmmu.5
11a60000-11a60fff : s5p-sysmmu.5
11c00000-11c07fff : s3cfb.0
11c00000-11c07fff : s3cfb
12480000-12480fff : s3c-usbgadget
12480000-12480fff : s3c-usbgadget
12530000-12530fff : s3c-sdhci.2
12530000-12530fff : mmc1
12540000-12540fff : s3c-sdhci.3
12540000-12540fff : mmc2
12550000-12550fff : dw_mmc
12550000-12550fff : mmc0
12580000-125800ff : s5p-ehci
12680000-12681000 : s3c-pl330.1
12680000-12681000 : s3c-pl330
12690000-12691000 : s3c-pl330.2
12690000-12691000 : s3c-pl330
126c0000-126c1fff : exynos4412-adc
12850000-12851000 : s3c-pl330.0
12850000-12851000 : s3c-pl330
12c00000-12c0ffff : s5p-vp
12c00000-12c0ffff : s5p-vp
12c10000-12c1ffff : s5p-mixer
12c10000-12c1ffff : s5p-mixer
12c20000-12c2ffff : s5p-sdo
12d00000-12dfffff : s5p-hdmi
12d00000-12dfffff : s5p-hdmi
12e20000-12e20fff : s5p-sysmmu.12
12e20000-12e20fff : s5p-sysmmu.12
13000000-13000097 : Mali-400 GP
13001000-1300102f : Mali-400 L2 cache
13003000-13003023 : Mali-400 MMU for GP
13004000-13004023 : Mali-400 MMU for PP 0
13005000-13005023 : Mali-400 MMU for PP 1
13006000-13006023 : Mali-400 MMU for PP 2
13007000-13007023 : Mali-400 MMU for PP 3
13008000-130090ef : Mali-400 PP 0
1300a000-1300b0ef : Mali-400 PP 1
1300c000-1300d0ef : Mali-400 PP 2
1300e000-1300f0ef : Mali-400 PP 3
13400000-1340ffff : s3c-mfc
13400000-1340ffff : s3c-mfc
13620000-13620fff : s5p-sysmmu.13
13620000-13620fff : s5p-sysmmu.13
13630000-13630fff : s5p-sysmmu.14
13630000-13630fff : s5p-sysmmu.14
13800000-138000ff : s5pv210-uart.0
13800000-138000ff : s5pv210-uart
13810000-138100ff : s5pv210-uart.1
13810000-138100ff : s5pv210-uart
13820000-138200ff : s5pv210-uart.2
13820000-138200ff : s5pv210-uart
13830000-138300ff : s5pv210-uart.3
13830000-138300ff : s5pv210-uart
13870000-13870fff : s3c2440-i2c.1
13870000-13870fff : s3c2440-i2c
13890000-13890fff : s3c2440-i2c.3
13890000-13890fff : s3c2440-i2c
138a0000-138a0fff : s3c2440-i2c.4
138a0000-138a0fff : s3c2440-i2c
138b0000-138b0fff : s3c2440-i2c.5
138b0000-138b0fff : s3c2440-i2c
138d0000-138d0fff : s3c2440-i2c.7
138d0000-138d0fff : s3c2440-i2c
138e0000-138e03ff : s5p-i2c-hdmi-phy
138e0000-138e03ff : s5p-i2c-hdmi-phy
13940000-139400ff : s3c64xx-spi.2
13940000-139400ff : s3c64xx-spi
40000000-6dffffff : System RAM
40040000-40933fff : Kernel text
40934000-40a156b7 : Kernel data
70000000-bfefffff : System RAM
挂载时提示：
root@BoxLab:~# insmod keys_drv.ko
[ 615.945684] KEYS_DRV: Device Initialize.
insmod: can't insert 'keys_drv.ko': Device or resource busy
root@BoxLab:~#
root@BoxLab:~# cat /proc/devices //这时多了keyy,设备号是168
Character&nbs