V4L2 编程问题

叶青

摄像头用的是自带的500万 ，最小Linux系统也是用的配置好的，但是每次运行应用程序时总显示：


[root@iTOP-4412]# ./mnt/disk/v4l2
[   63.632037] s3c-fimc2: FIMC2 1 opened.
Support format:
pixelformat = ''RGBP''
descrip[   63.639860] s3c-fimc2: fimc_runtime_resume_cap: No capture device.
[   63.645729] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[   63.653668] pgd = d48fc000
[   63.656425] [00000000] *pgd=567d2831, *pte=00000000, *ppte=00000000
[   63.662564] Internal error: Oops: 17 [#1] PREEMPT SMP
[   63.667585] Modules linked in:
[   63.670635] CPU: 0    Not tainted  (3.0.15 #3)
[   63.675083] PC is at fimc_s_fmt_vid_capture+0xe8/0x358
[   63.680176] LR is at 0x1
[   63.682708] pc : [<c03411dc>]    lr : [<00000001>]    psr: 40000053
[   63.682728] sp : d4851c38  ip : 00000000  fp : d4851c64
[   63.694152] r10: d60db840  r9 : d67e28c0  r8 : d60e2d00
[   63.699364] r7 : d63e44d4  r6 : d487d03c  r5 : d487d000  r4 : d63e4470
[   63.705871] r3 : 00000011  r2 : 00000000  r1 : 00000007  r0 : 00000001
[   63.712387] Flags: nZcv  IRQs on  FIQs off  Mode SVC_32  ISA ARM  Segment user
[   63.719587] Control: 10c5387d  Table: 548fc04a  DAC: 00000015
[   63.725309]
[   63.725320] PC: 0xc034115c: