1、搜索以什么字符结尾的文件
# grep -r "marvell.com$" *
^word 待搜寻的字符在行首
. 匹配任何一个可能的字符
\ 跳脱符号将特殊字符变成普通字符
? 任何一个『单一』字符
* 匹配模式中重复的字符
例题：在 /kernel 底下，只要含有 XYZ 三个字符的任何一个字符的那一行就列出来
grep [XYZ] /etc/*
egrep -r “create | stream“ * //
和两种模式的任一种进行匹配
[]
匹配一个指定范围内的字符，如'[Gg]rep'匹配Grep和grep。
同时匹配kobe和james:
sed -n '/kobe/{/james/p}'
awk '/kobe/&&/james/{ print $0 }'
grep -E '(kobe.*james|james.*kobe)'
匹配kobe或james:
sed -n '/\(kobe\|james\)/p'
awk '/kobe/||/james/{ print $0 }'
grep -E '(kobe|james)'
在当前目录下找到以.c结尾的文件，然后再在这些文件中查找同时包含marvell和com以及com和marvell的行
grep -sirnE --include="*.c" "marvell.*com|com.*marvell" *
--include=“*.c” 搜索时只搜索以这个为后缀的文件
--exclude="*.h" 如果添加这个代表搜索时不搜索这些文件
-i 不区分大小写
-n 打印行号
-r 递归搜索子目录
-E 用来支持 “|”等
-s, --no-messages
Suppress error messages about nonexistent or unreadable files.
2, Makefile 打印方法： $(warning $(KERNELDIR))
vi 全局替换 :% s/xxx/yyy/g
:% s/\[[^>]*\]//g 删除[]內(包括[])的所有内容！
3, ubuntu visio 替换工具 sudo apt-get install via 还不错
4, ERROR :“dereferencing pointer to incomplete type”是什么错误？4,
I use gcc to compile my C file.
你的指针，有一个类型，这个类型是不完全的。也就是说，你只给出了这个类型的声明，没有给出其定义。你这里的类型多半是结构，联合之类的东西。
查看gcc预定义宏的方法:
新建一个最简单的C文件test.c（其实任何C文件都可以），只有一行:
int main(void) {}
在命令行执行如下命令：
编译器便会列出所有的 预定义宏.
#define _IO_CURRENTLY_PUTTING 0x800 ...... #define __USE_BSD 1 #define __FLT_EVAL_METHOD__ 2 #define _IO_USER_LOCK 0x8000 #define _IO_NO_WRITES 8 #define __ASMNAME2(prefix,cname) __STRING (prefix) cname #define __unix__ 1 ...... #define __unix 1 #define __UID_T_TYPE __U32_TYPE #define getc(_fp) _IO_getc (_fp) #define __SIZE_T #define __LDBL_MAX_EXP__ 16384 #define _ATFILE_SOURCE 1 #define _IO_ssize_t _G_ssize_t #define __linux__ 1 ...... #define __SIZEOF_LONG_LONG__ 8 #define _LINUX 1 ...... #define _G_VTABLE_LABEL_HAS_LENGTH 1当然，你也可以换成你想查看的编译器，如montavista 5.0的编译器：
arm_v5t_le-gcc -dM -E test.c
ANSI C标准中有几个标准预定义宏（也是常用的）：
__LINE__：在源代码中插入当前源代码行号；
__FILE__：在源文件中插入当前源文件名；
__DATE__：在源文件中插入当前的编译日期
__TIME__：在源文件中插入当前编译时间；
__STDC__：当要求程序严格遵循ANSI C标准时该标识被赋值为1；
__cplusplus：当编写C++程序时该标识符被定义。
7、vim可以设置一些常用模式（.vimrc）：
set nobomb
set ts=8
8、kernel BUG() 宏 及 panic实现与效果
#define BUG() _BUG(__FILE__, __LINE__, BUG_INSTR_VALUE)
#define _BUG(file, line, value) __BUG(file, line, value)
#define __BUG(__file, __line, __value) \
do { \
asm volatile("1:\t" BUG_INSTR_TYPE #__value "\n" \
".pushsection .rodata.str, \"aMS\", %progbits, 1\n" \
"2:\t.asciz " #__file "\n" \
".popsection\n" \
".pushsection __bug_table,\"a\"\n" \
"3:\t.word 1b, 2b\n" \
"\t.hword " #__line ", 0\n" \
".popsection"); \
unreachable(); \
} while (0)
结果：（R0-R12 通用寄存器，R13 MSP/PSP（堆栈指针），R14 LR（连接寄存器），R15 PC(程序计数器)）
PSR 状态字寄存器
[ 3.589806] Code: e3700a01 e5840008 9a000000 e8bd8010 (e7f001f2)
[ 3.595788] ------------[ cut here ]------------
[ 3.600457] kernel BUG at /home/zhuangwenxue/8860U/code/kernel/drivers/usb/gadget/android.c:2718!
[ 3.609156] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[ 3.615138] Modules linked in:
[ 3.618068] CPU: 0 Tainted: G W (3.4.0-g2c8996c-00133-ga9f68ae-dirty #1)
[ 3.626094] PC is at android_probe+0x30/0x3c
[ 3.630215] LR is at __class_register+0x1a0/0x1d8
[ 3.635037] pc : [<c07d70c4>] lr : [<c03ac90c>] psr: 80000013
[ 3.635067] sp : dd943ed8 ip : 02a4a000 fp : 00000000
[ 3.646482] r10: c0d00374 r9 : c0d683c4 r8 : 000001d2
[ 3.651548] r7 : 00000000 r6 : c0f14d9c r5 : c0f14d9c r4 : c11d2128
[ 3.658202] r3 : c07d7094 r2 : 00000000 r1 : 00000000 r0 : e3807d00
[ 3.664550] Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 3.671997] Control: 10c5787d Table: 8020406a DAC: 00000015
[ 3.677582]
[ 3.677582] PC: 0xc07d7044:
[ 3.681825] 7044 e1a00004 e1a01009 ebef5060 e1a00008 ebf177da e1a0000a e8bd8ffe e35c0003
[ 3.690004] 7064 1affffae eaffffaa c0bb5f27 c09552b5 c0bab5fe c0bab617 c0f114a0 c11d2004
[ 3.698153] 7084 c0bb5f55 c0bb5f93 c11d2008 c0bb5fb0 e92d4010 e59f4028 e5940008 e3500000
[ 3.706332] 70a4 1a000006 e59f101c e2842eab ebef5623 e3700a01 e5840008 9a000000 e8bd8010
[ 3.714481] 70c4 e7f001f2 c11d2128 c0b3d56d e92d47f3 e1a05003 e593800c e1a04002 e59f31d8
[ 3.722661] 70e4 e2807008 e3580000 e1a00002 e5841004 e1a09001 e4805054 01a08003 e59f11bc
[ 3.730810] 7104 e59f21bc ebeb8e45 e5950004 e3500c02 2a000033 e1a01008 ebebc74f e2506000
[ 3.738959] 7124 aa000005 e1a00007 e59f1198 e5952004 e1a03006 ebef47aa ea00005d e5950004
[ 3.747138]
[ 3.747138] LR: 0xc03ac88c:
[ 3.751350] c88c ea00000d e1a00004 e2866014 ebffffac e2508000 13a07014 13a06000 10070597
[ 3.759560] c8ac 1a00000d e2855001 e5943008 e0831006 e7933006 e3530000 1afffff1 e3540000
[ 3.767709] c8cc 1a00000b ea00000f e5941008 e0863007 e1a00004 e0811003 ebffff73 e2455001
[ 3.775858] c8ec e2466014 e3750001 1afffff6 e1a07008 eafffff1 e594003c e2800018 ebfbfe90
[ 3.784007] c90c ea000000 e3e0700b e1a00007 e8bd81f0 c0f71270 c0b91c50 c11678d8 c03ac42c
[ 3.792186] c92c c03ac6b0 c0b91672 c0b4c158 c11bf108 c11bf130 c0ef0e68 e92d40f8 e1a05000
[ 3.800335] c94c e59f306c e1a06001 e1a04002 e5930018 e3500000 0a000005 e30810d0 e3a02040
[ 3.808515] c96c ebf62fab e2507000 1a000001 ea00000a e3a07010 e59f303c e1a01004 e5876000
[ 3.816664]
[ 3.816664] SP: 0xdd943e58:
[ 3.820906] 3e58 00000000 c07d7094 c11d2128 c0f14d9c c0f14d9c 00000000 000001d2 c0d683c4
[ 3.829085] 3e78 c0d00374 00000000 02a4a000 dd943ed8 c03ac90c c07d70c4 80000013 ffffffff
[ 3.837234] 3e98 e383d218 00000000 e3807d00 c03ac90c c11d2bd8 00000000 c0b3d56d e3807d00
[ 3.845414] 3eb8 000001d2 c03ac99c c07d7094 c11d2128 c0f14d9c c0f14d9c 00000000 c07d70b4
[ 3.853563] 3ed8 c0ea6cf0 c03acbac c03acb98 c03ab744 c0ea6cf0 c0f14d9c 00000001 c0ea6cf0
[ 3.861712] 3ef8 c0f14d9c c0f14d9c 00000000 c03abad0 c0f14d9c c0ea6cf0 dd943f18 c0ea6cf0
[ 3.869891] 3f18 c0ea6d24 c03abb58 c0f14d9c dd943f30 c03abaf8 c03a9fb4 dd902a78 dd9f39c0
[ 3.878040] 3f38 c0f14d9c c0f14d9c e3806280 c0ef0e80 00000000 c03aaec0 c0b3d56d 00000000
[ 3.886220]
[ 3.886220] R0: 0xe3807c80:
[ 3.890431] 7c80 76697264 aa007265 aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa
[ 3.898611] 7ca0 aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa
[ 3.906790] 7cc0 00000001 00000000 c9e07680 e3807c80 c9e07710 00000000 00000000 00000000
[ 3.914939] 7ce0 00000000 3ccb37e1 e3807bc0 00000000 00000000 a1ff0008 00003380 00000000
[ 3.923119] 7d00 c0b3d56d 00000000 00000000 00000000 00000000 dd92aa80 00000000 00000000
[ 3.931268] 7d20 c03ac5f4 00000000 00000000 00000000 00000000 00000000 00000000 e383d200
[ 3.939417] 7d40 72646e61 5f64696f 00627375 aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa
[ 3.947565] 7d60 aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa
[ 3.955745]
[ 3.955745] R3: 0xc07d7014:
[ 3.960109] 7014 aa00000f e2844020 e59f6068 e59f1068 e1a0200a e1a00004 ebef47ed e7963105
[ 3.968167] 7034 e59300d4 ebef5858 e7960105 ebf275f3 e1a00004 e1a01009 ebef5060 e1a00008
[ 3.976316] 7054 ebf177da e1a0000a e8bd8ffe e35c0003 1affffae eaffffaa c0bb5f27 c09552b5
[ 3.984465] 7074 c0bab5fe c0bab617 c0f114a0 c11d2004 c0bb5f55 c0bb5f93 c11d2008 c0bb5fb0
[ 3.992644] 7094 e92d4010 e59f4028 e5940008 e3500000 1a000006 e59f101c e2842eab ebef5623
[ 4.000793] 70b4 e3700a01 e5840008 9a000000 e8bd8010 e7f001f2 c11d2128 c0b3d56d e92d47f3
[ 4.008942] 70d4 e1a05003 e593800c e1a04002 e59f31d8 e2807008 e3580000 e1a00002 e5841004
[ 4.017121] 70f4 e1a09001 e4805054 01a08003 e59f11bc e59f21bc ebeb8e45 e5950004 e3500c02
[ 4.025270]
[ 4.025301] R4: 0xc11d20a8:
[ 4.029513] 20a8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4.037692] 20c8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4.045841] 20e8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4.054021] 2108 00000000 00000084 e60f0000 00000000 00000000 00000000 00000000 00000000
[ 4.062169] 2128 c11d2128 c11d2128 e3807d00 00000000 00000000 00000000 00000000 00000000
[ 4.070349] 2148 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4.078498] 2168 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4.086647] 2188 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4.094826]
[ 4.094826] R5: 0xc0f14d1c:
[ 4.099038] 4d1c 00000000 484d434e 304d434e 0000000c 00000008 00000004 00000001 00000001
[ 4.107218] 4d3c 00000001 00000000 00000000 00000001 686d636e 306d636e 00000010 00000010
[ 4.115397] 4d5c 00000008 00000002 00000002 00000002 00000001 00000002 00000002 c0c03bf3
[ 4.123546] 4d7c 00000124 c0483570 00000000 c07d7094 c04933f8 00000000 00000000 00000000
[ 4.131695] 4d9c c0b3d56d c0ef0e80 00000000 00000000 00000000 00000000 c03acb98 c03acbb8
[ 4.139874] 4dbc 00000000 00000000 00000000 00000000 00000000 e3806280 c0c703d4 00000014
[ 4.148023] 4ddc 00000001 000001f4 00000800 00000000 dead4ead ffffffff ffffffff 000001f4
[ 4.156172] 4dfc 0000000a 00000000 00000000 00000000 00000000 dead4ead ffffffff ffffffff
[ 4.164352]
[ 4.164352] R6: 0xc0f14d1c:
[ 4.168564] 4d1c 00000000 484d434e 304d434e 0000000c 00000008 00000004 00000001 00000001
[ 4.176743] 4d3c 00000001 00000000 00000000 00000001 686d636e 306d636e 00000010 00000010
[ 4.184922] 4d5c 00000008 00000002 00000002 00000002 00000001 00000002 00000002 c0c03bf3
[ 4.193071] 4d7c 00000124 c0483570 00000000 c07d7094 c04933f8 00000000 00000000 00000000
[ 4.201251] 4d9c c0b3d56d c0ef0e80 00000000 00000000 00000000 00000000 c03acb98 c03acbb8
[ 4.209400] 4dbc 00000000 00000000 00000000 00000000 00000000 e3806280 c0c703d4 00000014
[ 4.217549] 4ddc 00000001 000001f4 00000800 00000000 dead4ead ffffffff ffffffff 000001f4
[ 4.225728] 4dfc 0000000a 00000000 00000000 00000000 00000000 dead4ead ffffffff ffffffff
[ 4.233877]
[ 4.233877] R9: 0xc0d68344:
[ 4.238119] 8344 c0d2b0c8 c0d2b110 c0d2b128 c0d2b140 c0d2b158 c0d2b170 c0d2b188 c0d2b1fc
[ 4.246299] 8364 c0d2b45c c0d2bf94 c0d2c2cc c0d2c2ec c0d2c3ec c0d2c430 c0d2c448 c0d2c460
[ 4.254478] 8384 c0d2c478 c0d2c490 c0d2c4a8 c0d2c4c0 c0d2c4d8 c0d2c4f0 c0d2c508 c0d2c520
[ 4.262597] 83a4 c0d2c538 c0d2c704 c0d2c740 c0d2c758 c0d2c99c c0d2c9b4 c0d2ccb8 c0d2ce28
[ 4.270776] 83c4 c0d2ce94 c0d2ccc4 c0d2cd68 c0d2ce18 c0d2ceec c0d2cf60 c0d2d00c c0d2d168
[ 4.278925] 83e4 c0d2d1f0 c0d2d1fc c0d2d220 c0d2d22c c0d2d238 c0d2d2d0 c0d2d2e8 c0d2d2f8
[ 4.287105] 8404 c0d2d304 c0d2d3a8 c0d2d3cc c0d2d3f4 c0d2d43c c0d2d474 c0d2d4ac c0d2d4e4
[ 4.295284] 8424 c0d2d51c c0d2d554 c0d2d75c c0d2d8c4 c0d2d92c c0d2da98 c0d2dc28 c0d2dc34
[ 4.303433]
[ 4.303433] R10: 0xc0d002f4:
[ 4.307736] 02f4 e5941000 ebce8595 e3500000 1a000009 e1a00005 e59f1058 ebd6cb72 e3500000
[ 4.315916] 0314 1a00000c e5940000 e59f1048 ebd6cb6d e3500000 1a000007 e5943004 e1a00007
[ 4.324095] 0334 e12fff33 e3500000 0a000002 e59f0028 e1a01005 ebebb0ac e284400c e1540006
[ 4.332244] 0354 3affffe2 e3a00000 e8bd80f8 c0d676c0 c0d67c9c c0b229b0 c0b227f0 c0b227f9
[ 4.340393] 0374 e92d4038 e2515000 e1a04000 0a000014 ebd6cb91 e2803001 e0843003 e1550003
[ 4.348573] 0394 03a0303d 05453001 0a00000d e2800002 e0844000 e1550004 1a000008 e3a0303d
[ 4.356722] 03b4 e1a00005 e5453002 ebd6cb83 e1a01005 e2802001 e2450001 ebd6a757 ea000000
[ 4.364871] 03d4 e7f001f2 e3a00000 e8bd8038 e92d45f8 e1a04000 e1a08001 ebffffe0 e1a00004
[ 4.373050] Process swapper/0 (pid: 1, stack limit = 0xdd9422f0)
[ 4.379154] Stack: (0xdd943ed8 to 0xdd944000)
[ 4.383366] 3ec0: c0ea6cf0 c03acbac
[ 4.391667] 3ee0: c03acb98 c03ab744 c0ea6cf0 c0f14d9c 00000001 c0ea6cf0 c0f14d9c c0f14d9c
[ 4.399847] 3f00: 00000000 c03abad0 c0f14d9c c0ea6cf0 dd943f18 c0ea6cf0 c0ea6d24 c03abb58
[ 4.407843] 3f20: c0f14d9c dd943f30 c03abaf8 c03a9fb4 dd902a78 dd9f39c0 c0f14d9c c0f14d9c
[ 4.416175] 3f40: e3806280 c0ef0e80 00000000 c03aaec0 c0b3d56d 00000000 00000000 c0f14d9c
[ 4.424324] 3f60: c0f93040 c0d2ce28 00000000 000001d2 c0d00374 c03ac030 00000000 00000006
[ 4.432473] 3f80: c0f93040 c0d2ce28 00000000 000001d2 c0d00374 c0d2ce5c 00000006 c0008720
[ 4.440500] 3fa0: 00000007 00000006 c0d41d2c c0d41d0c c0f93040 c0d009e8 00000006 00000006
[ 4.448802] 3fc0: c0d00374 00000000 c0d67cd8 c0d67cd8 c000ead0 00000013 00000000 00000000
[ 4.456951] 3fe0: 00000000 c0d00a9c 00000000 00000000 c0d00a18 c000ead0 00000000 00000000
[ 4.465008] [<c07d70c4>] (android_probe+0x30/0x3c) from [<c03acbac>] (platform_drv_probe+0x14/0x18)
[ 4.474164] [<c03acbac>] (platform_drv_probe+0x14/0x18) from [<c03ab744>] (really_probe+0xd4/0x2c4)
[ 4.483198] [<c03ab744>] (really_probe+0xd4/0x2c4) from [<c03abad0>] (driver_probe_device+0x88/0xb0)
[ 4.492324] [<c03abad0>] (driver_probe_device+0x88/0xb0) from [<c03abb58>] (__driver_attach+0x60/0x84)
[ 4.501602] [<c03abb58>] (__driver_attach+0x60/0x84) from [<c03a9fb4>] (bus_for_each_dev+0x4c/0x84)
[ 4.510636] [<c03a9fb4>] (bus_for_each_dev+0x4c/0x84) from [<c03aaec0>] (bus_add_driver+0xd0/0x250)
[ 4.519487] [<c03aaec0>] (bus_add_driver+0xd0/0x250) from [<c03ac030>] (driver_register+0x9c/0x128)
[ 4.528673] [<c03ac030>] (driver_register+0x9c/0x128) from [<c0d2ce5c>] (init+0x34/0x6c)
[ 4.536761] [<c0d2ce5c>] (init+0x34/0x6c) from [<c0008720>] (do_one_initcall+0x34/0xf8)
[ 4.544727] [<c0008720>] (do_one_initcall+0x34/0xf8) from [<c0d009e8>] (do_initcalls+0x70/0xa0)
[ 4.570608] Code: e3700a01 e5840008 9a000000 e8bd8010 (e7f001f2)
[ 4.577109] ---[ end trace da227214a82491b8 ]---
[ 4.581870] swapper/0 used greatest stack depth: 5088 bytes left
[ 4.587242] msm_otg msm_otg: phy_reset: success
[ 4.591851] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[ 4.591851]
[ 4.600915] CPU1: stopping
[ 4.603448] [<c0013e04>] (unwind_backtrace+0x0/0x11c) from [<c001312c>] (handle_IPI+0x100/0x1dc)
[ 4.612360] [<c001312c>] (handle_IPI+0x100/0x1dc) from [<c0008628>] (gic_handle_irq+0x104/0x110)
[ 4.620998] [<c0008628>] (gic_handle_irq+0x104/0x110) from [<c080db80>] (__irq_svc+0x40/0x70)
[ 4.629604] Exception stack(0xdd965f98 to 0xdd965fe0)
[ 4.634640] 5f80: ffffffed 00000001
[ 4.642667] 5fa0: 02a54000 c005b58c dd964000 c0e4f700 c0f93108 c0f933c0 8020406a 511f04d4
[ 4.650969] 5fc0: 00000000 00000000 0000001a dd965fe0 c000eb28 c000eb34 a0000013 ffffffff
[ 4.659148] [<c080db80>] (__irq_svc+0x40/0x70) from [<c000eb34>] (default_idle+0x24/0x2c)
[ 4.667175] [<c000eb34>] (default_idle+0x24/0x2c) from [<c000eeb8>] (cpu_idle+0x68/0xf0)
[ 4.675385] [<c000eeb8>] (cpu_idle+0x68/0xf0) from [<80208160>] (0x80208160)
[ 4.682405] wcnss_8960: crash shutdown : 0
[ 7.793285] Rebooting in 5 seconds..
[ 12.806195] reset_debug emergency_restart entry
[ 12.810285] Going down ................ // Coming into dloader
panic("fixed area size is larger than %dM\n", MAX_FIXED_AREA_SIZE >> 20);
grover:/d/regulator/8916_l6 # ls ls 1ac8300.qcom,mdss_dsi_pll-vddio consumers open_count voltage 5-0038-vcc_i2c enable optimum_mode 8916_l6 force_disable soc:qcom,mdss_spi@0-vddio bypass_count mode use_count grover:/d/regulator/8916_l6 # pwd pwd /d/regulator/8916_l6 grover:/d/regulator/8916_l6 # cat voltage cat voltage 1800000 grover:/d/regulator/8916_l6 # cat mode cat mode 2 grover:/d/regulator/8916_l6 # cat enable cat enable 1 grover:/d/regulator/8916_l6 # cat optimum_mode cat optimum_mode 4 grover:/d/regulator/8916_l6 # cat open_count cat open_count 4 grover:/d/regulator/8916_l6 # cat open_count cat open_count 4 grover:/d/regulator/8916_l6 # cat consumers // panel off cat consumers Device-Supply EN Min_uV Max_uV load_uA 5-0038-vcc_i2c N 1800000 1800000 0 soc:qcom,mdss_spi@0-vddio N 1800000 1800000 100 1ac8300.qcom,mdss_dsi_pll-vddio N 1800000 1800000 0 8916_l6 N 0 0 0 grover:/d/regulator/8916_l6 # cat consumers // panel on cat consumers Device-Supply EN Min_uV Max_uV load_uA 5-0038-vcc_i2c Y 1800000 1800000 0 soc:qcom,mdss_spi@0-vddio Y 1800000 1800000 100000 1ac8300.qcom,mdss_dsi_pll-vddio N 1800000 1800000 0 8916_l6 N 0 0 0 grover:/d/regulator/8916_l6 # cat consumers cat consumers Device-Supply EN Min_uV Max_uV load_uA 5-0038-vcc_i2c Y 1800000 1800000 0 soc:qcom,mdss_spi@0-vddio Y 1800000 1800000 100000 1ac8300.qcom,mdss_dsi_pll-vddio N 1800000 1800000 0 8916_l6 N 0 0 0 grover:/d/regulator/8916_l6 #
9、qcom平台查看中断上报的情况：
grover:/proc/irq # ls
ls
100 142 196 220 227 233 240 27 34 374 43 54 65 88 95
102 16 20 221 228 234 241 28 342 375 44 55 81 89 97
103 17 21 222 229 235 242 29 343 376 45 56 82 90 98
117 18 217 223 23 236 243 30 344 377 49 57 83 91 99
128 19 218 224 230 237 244 31 345 39 50 58 84 92 default_smp_affinity
132 194 219 225 231 238 245 32 35 40 52 59 85 93
140 195 22 226 232 239 25 33 36 42 53 64 87 94
grover:/proc/irq # cd ..
cd ..
grover:/proc # cat interrupts
cat interrupts
CPU2 CPU3
18: 21476 22589 GIC 20 arch_timer
20: 16681 13546 GIC 39 arch_mem_timer
21: 0 0 GIC 59 smp2p
22: 0 0 GIC 175 smp2p
23: 0 0 GIC 75 msm_iommu_global_cfg_irq
25: 0 0 GIC 73 msm_iommu_global_cfg_irq
27: 0 0 GIC 215 410000.qcom,gpu-bwmon
28: 391 0 GIC 65 kgsl-3d0
29: 0 0 GIC 198 coresight-tmc-etr
30: 0 0 GIC 114 nidnt_nidnt
31: 0 0 GIC 224 spdm_bw_hyp
32: 242 0 GIC 104 MDP
33: 0 0 GIC 139 msm_serial_hsl0
34: 0 0 GIC 216 tsens_interrupt
35: 0 0 GIC 76 msm_vidc
36: 0 0 GIC 61 sps
39: 593 0 GIC 166 msm_otg, msm_hsusb
40: 0 0 GIC 172 msm_otg
42: 248 0 GIC 222 200f000.qcom,spmi
43: 2 0 qpnp-int 64 qpnp_kpdpwr_status
44: 4 0 qpnp-int 65 qpnp_resin_status
45: 0 0 qpnp-int 777 qpnp_rtc_alarm
49: 0 0 qpnp-int 419 qpnp_adc_tm_high_interrupt
50: 0 0 qpnp-int 420 qpnp_adc_tm_low_interrupt
52: 0 0 qpnp-int 134 chg_failed
53: 148 0 qpnp-int 133 fastchg
54: 54 21 qpnp-int 128 vbatdet_lo
55: 0 0 qpnp-int 145 batt_temp
56: 0 0 qpnp-int 144 batt_pres
57: 0 0 qpnp-int 156 usb_overtemp
58: 0 0 qpnp-int 154 chg_gone
59: 0 0 qpnp-int 153 usbin_valid
64: 20 0 qpnp-int 516 fifo_update_done
65: 0 0 qpnp-int 517 fsm_state_change
81: 35945 0 GIC 155 mmc0
65: 0 0 qpnp-int 517 fsm_state_change 81: 35945 0 GIC 155 mmc0 82: 108 0 GIC 170 7824900.sdhci 83: 0 0 GIC 157 mmc1 84: 8934 0 GIC 253 7864900.sdhci 85: 0 0 GIC 35 apps_wdog_bark 87: 80 0 GIC 132 78ba000.spi 88: 440 0 GIC 270 sps 89: 0 0 GIC 128 i2c-msm-v2-irq 90: 0 0 GIC 130 i2c-msm-v2-irq 91: 15026 0 GIC 131 i2c-msm-v2-irq 92: 0 0 GIC 129 i2c-msm-v2-irq 93: 0 0 GIC 239 sps 94: 0 0 GIC 181 wcnss 95: 0 0 GIC 56 modem 97: 0 0 GIC 47 cpr 98: 0 0 GIC 110 csiphy 99: 0 0 GIC 81 csid 100: 0 0 GIC 82 csid 103: 4381 2201 GIC 203 601d0.qcom,mpm 117: 1842 37 msmgpio 13 fts_ts 128: 0 0 msmgpio 24 TE_GPIO 132: 0 0 msmgpio 28 ant_det 140: 0 0 msmgpio 36 sar_det 142: 8934 0 msmgpio 38 7864900.sdhci cd 194: 0 0 msmgpio 90 volume_up 195: 0 0 msmgpio 91 camera_focus 196: 0 0 msmgpio 92 camera_snapshot 217: 782 0 GIC 57 qcom,smd-modem 218: 0 0 GIC 58 qcom,smsm-modem 219: 0 0 GIC 174 qcom,smd-wcnss 220: 0 0 GIC 176 qcom,smsm-wcnss 221: 101519 86459 GIC 200 qcom,smd-rpm 222: 0 0 GIC 273 msm_iommu_secure_irq 223: 0 0 GIC 274 msm_iommu_secure_irq 1|grover:/proc/irq/32 # ls -al ls -al total 0 dr-xr-xr-x 3 root root 0 1970-01-01 00:25 . dr-xr-xr-x 104 root root 0 1970-01-01 00:25 .. dr-xr-xr-x 2 root root 0 1970-01-01 00:26 MDP -r--r--r-- 1 root root 0 1970-01-01 00:26 affinity_hint -r--r--r-- 1 root root 0 1970-01-01 00:26 disable_depth -r--r--r-- 1 root root 0 1970-01-01 00:26 node -rw-r--r-- 1 root root 0 1970-01-01 00:26 smp_affinity -rw-r--r-- 1 root root 0 1970-01-01 00:26 smp_affinity_list -r--r--r-- 1 root root 0 1970-01-01 00:26 spurious -r--r--r-- 1 root root 0 1970-01-01 00:26 wake_depth grover:/proc/irq/32 # cd MDP cd MDP grover:/proc/irq/32/MDP # ls ls grover:/proc/irq/32/MDP # cd .. cd .. grover:/proc/irq/32 # ls ls MDP disable_depth smp_affinity spurious affinity_hint node smp_affinity_list wake_depth grover:/proc/irq/32 # cat spm_affinity cat spm_affinity /system/bin/sh: cat: spm_affinity: No such file or directory 1|grover:/proc/irq/32 # cat smp_affinity cat smp_affinity f