mini210的开发板在使用ADC时遇到如下问题
将mach-s5pv210目录下的adc.c驱动编译进内核
启动内核时打印出
[ 1.045328] ------------[ cut here ]------------
[ 1.045387] WARNING: at fs/sysfs/dir.c:451 sysfs_add_one+0x6c/0x8c()
[ 1.049822] sysfs: cannot create duplicate filename '/devices/virtual/misc/adc'
[ 1.057086] Modules linked in:
[ 1.060105] Backtrace:
[ 1.062553] [<c0173efc>] (dump_backtrace+0x0/0x110) from [<c0574828>] (dump_stack+0x18/0x1c)
[ 1.070957] r6:c06e6656 r5:000001c3 r4:cfc27dc8 r3:00000002
[ 1.076583] [<c0574810>] (dump_stack+0x0/0x1c) from [<c0193c84>] (warn_slowpath_common+0x54/0x6c)
[ 1.085435] [<c0193c30>] (warn_slowpath_common+0x0/0x6c) from [<c0193d40>] (warn_slowpath_fmt+0x38/0x40)
[ 1.094870] r8:cff6fe70 r7:cfc27e08 r6:cff6fe70 r5:cfc14000 r4:ffffffef
[ 1.101354] r3:00000009
[ 1.103963] [<c0193d08>] (warn_slowpath_fmt+0x0/0x40) from [<c0240698>] (sysfs_add_one+0x6c/0x8c)
[ 1.112811] r3:cfc14000 r2:c06e6665
[ 1.116354] [<c024062c>] (sysfs_add_one+0x0/0x8c) from [<c0240724>] (create_dir+0x6c/0xb8)
[ 1.124596] r7:00000000 r6:00000001 r5:cfc27e08 r4:cff0a570
[ 1.130219] [<c02406b8>] (create_dir+0x0/0xb8) from [<c0240860>] (sysfs_create_dir+0xc4/0xe0)
[ 1.138721] r8:c0793f44 r7:cfc80c80 r6:cff0a570 r5:00000000 r4:cff0fc08
[ 1.145387] [<c024079c>] (sysfs_create_dir+0x0/0xe0) from [<c02ccdf8>] (kobject_add_internal+0xd8/0x1f0)
[ 1.154837] r6:cfd62840 r5:cff0fc08 r4:cff0fc08
[ 1.159422] [<c02ccd20>] (kobject_add_internal+0x0/0x1f0) from [<c02cd218>] (kobject_add+0x74/0x94)
[ 1.168442] r8:c0793f44 r7:cfc80c80 r6:00000000 r5:cfd62840 r4:cff0fc08
[ 1.174927] r3:00000001
[ 1.177541] [<c02cd1a4>] (kobject_add+0x0/0x94) from [<c0330150>] (device_add+0xa8/0x4ac)
[ 1.185690] r3:00000002 r2:00000000
[ 1.189225] r6:00a0003c r5:cff0fc08 r4:cff0fc00
[ 1.193827] [<c03300a8>] (device_add+0x0/0x4ac) from [<c0330570>] (device_register+0x1c/0x20)
[ 1.202333] [<c0330554>] (device_register+0x0/0x20) from [<c03305e8>] (device_create_vargs+0x74/0xb8)
[ 1.211514] r4:00000000 r3:00000000
[ 1.215057] [<c0330574>] (device_create_vargs+0x0/0xb8) from [<c0330654>] (device_create+0x28/0x30)
[ 1.224079] r8:00000000 r7:00000001 r6:c08dc9f0 r5:c0793f50 r4:c0793f44
[ 1.230564] r3:c0793f44
[ 1.233173] [<c033062c>] (device_create+0x0/0x30) from [<c02f9cd8>] (misc_register+0xc8/0x138)
[ 1.241767] [<c02f9c10>] (misc_register+0x0/0x138) from [<c00193d4>] (dev_init+0xc0/0x100)
[ 1.249991] r6:c0019314 r5:00000000 r4:c08de5c0
[ 1.254574] [<c0019314>] (dev_init+0x0/0x100) from [<c016f4b8>] (do_one_initcall+0x68/0x1b0)
[ 1.262986] r5:c002c0a4 r4:c002bc9c
[ 1.266532] [<c016f450>] (do_one_initcall+0x0/0x1b0) from [<c0008aa0>] (kernel_init+0xb4/0x170)
[ 1.275208] r7:00000013 r6:c0196e5c r5:c002c0a4 r4:c002bc9c
[ 1.280832] [<c00089ec>] (kernel_init+0x0/0x170) from [<c0196e5c>] (do_exit+0x0/0x5f4)
[ 1.288723] r5:c00089ec r4:00000000
[ 1.292275] ---[ end trace 540c8df756993d09 ]---
[ 1.296874] kobject_add_internal failed for adc with -EEXIST, don't try to register things with the same name in the same directory.
[ 1.308744] Backtrace:
[ 1.311162] [<c0173efc>] (dump_backtrace+0x0/0x110) from [<c0574828>] (dump_stack+0x18/0x1c)
[ 1.319577] r6:cfd62840 r5:cff0fc08 r4:ffffffef r3:00000002
[ 1.325200] [<c0574810>] (dump_stack+0x0/0x1c) from [<c02ccee4>] (kobject_add_internal+0x1c4/0x1f0)
[ 1.334228] [<c02ccd20>] (kobject_add_internal+0x0/0x1f0) from [<c02cd218>] (kobject_add+0x74/0x94)
[ 1.343234] r8:c0793f44 r7:cfc80c80 r6:00000000 r5:cfd62840 r4:cff0fc08
[ 1.349716] r3:00000001
[ 1.352327] [<c02cd1a4>] (kobject_add+0x0/0x94) from [<c0330150>] (device_add+0xa8/0x4ac)
[ 1.360476] r3:00000002 r2:00000000
[ 1.364015] r6:00a0003c r5:cff0fc08 r4:cff0fc00
[ 1.368615] [<c03300a8>] (device_add+0x0/0x4ac) from [<c0330570>] (device_register+0x1c/0x20)
[ 1.377125] [<c0330554>] (device_register+0x0/0x20) from [<c03305e8>] (device_create_vargs+0x74/0xb8)
[ 1.386299] r4:00000000 r3:00000000
[ 1.389847] [<c0330574>] (device_create_vargs+0x0/0xb8) from [<c0330654>] (device_create+0x28/0x30)
[ 1.398866] r8:00000000 r7:00000001 r6:c08dc9f0 r5:c0793f50 r4:c0793f44
[ 1.405350] r3:c0793f44
[ 1.407958] [<c033062c>] (device_create+0x0/0x30) from [<c02f9cd8>] (misc_register+0xc8/0x138)
[ 1.416555] [<c02f9c10>] (misc_register+0x0/0x138) from [<c00193d4>] (dev_init+0xc0/0x100)
[ 1.424776] r6:c0019314 r5:00000000 r4:c08de5c0
[ 1.429362] [<c0019314>] (dev_init+0x0/0x100) from [<c016f4b8>] (do_one_initcall+0x68/0x1b0)
[ 1.437775] r5:c002c0a4 r4:c002bc9c
[ 1.441320] [<c016f450>] (do_one_initcall+0x0/0x1b0) from [<c0008aa0>] (kernel_init+0xb4/0x170)
[ 1.449993] r7:00000013 r6:c0196e5c r5:c002c0a4 r4:c002bc9c
[ 1.455619] [<c00089ec>] (kernel_init+0x0/0x170) from [<c0196e5c>] (do_exit+0x0/0x5f4)
[ 1.463515] r5:c00089ec r4:00000000
[ 1.467054] mini210-adc initialized
下面也能正常启动内核
然后执行应用程序使用ADC时就会导致内核死掉
请问这是什么问题，是需要先创建文件系统吗
