libgpiodarmbian linux를 사용하여 GPIO 이벤트를 모니터링 하려고 합니다 . ~에 따르면내 장치의 핀아웃(BananaPI Zero M2 /w H3 allwinner 칩)CON2-P18테스트할 수 있도록 펄스 버튼에 핀을 걸어 놓았습니다 . 먼저 핀이 있는 라인을 찾아야 합니다.
# gpiofind "CON2-P18"
gpiochip0 68
그런 다음 모니터링하려고 시도하지만 gpiomon운이 좋지 않습니다.
# gpiomon --rising-edge 0 68
gpiomon: error waiting for events: No such device
gpioget하지만 유틸리티가 이를 인식하고 버튼 이벤트에서 제대로 실행된다는 것을 확인할 수 있습니다 .
# gpioget --bias=pull-down 0 68
0
root@bananapim2zero:~# gpioget --bias=pull-down 0 68
1
root@bananapim2zero:~# gpioget --bias=pull-down 0 68
0
유틸리티를 사용하여 설정할 수도 있습니다 gpioset.
# gpioset -B pull-down gpiochip0 68=0
동일한 모니터링 프로세스를 확인했는데 CON2-P16모든 것이 잘 작동합니다! 핀을 모니터링하려고 하면 동일한 오류와 동작이 발생합니다 CON2-P18.
위의 핀/라인을 사용하여 PCB를 이미 설계하고 구축했기 때문에 단순히 다른 핀을 사용하는 것은 약간 번거롭습니다. gpiomon무한 루프 대신 유틸리티를 사용하고 싶습니다 gpioget.
내가 뭔가 잘못했거나 lib에 문제가 있습니까?
libgpiod v. 1.6.2-1
# uname -a
Linux bananapim2zero 6.1.11-sunxi #23.02.2 SMP Sat Feb 18 05:52:53 UTC 2023 armv7l GNU/Linux
감사해요!
편집하다:
strace"오류" 명령 제공 $ strace sudo gpiomon --bias=pull-down --rising-edge gpiochip0 68::
execve("/usr/bin/sudo", ["sudo", "gpiomon", "--bias=pull-down", "--rising-edge", "gpiochip0", "68"], 0xbed32684 /* 24 vars */) = 0
access("/etc/suid-debug", F_OK) = -1 ENOENT (No such file or directory)
brk(NULL) = 0x192b000
fcntl64(0, F_GETFD) = 0
fcntl64(1, F_GETFD) = 0
fcntl64(2, F_GETFD) = 0
access("/etc/suid-debug", F_OK) = -1 ENOENT (No such file or directory)
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6fd6000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/v7l/neon/vfp/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/tls/v7l/neon/vfp", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/v7l/neon/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/tls/v7l/neon", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/v7l/vfp/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/tls/v7l/vfp", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/v7l/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/tls/v7l", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/neon/vfp/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/tls/neon/vfp", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/neon/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/tls/neon", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/vfp/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/tls/vfp", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/tls", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/v7l/neon/vfp/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/v7l/neon/vfp", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/v7l/neon/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/v7l/neon", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/v7l/vfp/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/v7l/vfp", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/v7l/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/v7l", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/neon/vfp/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/neon/vfp", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/neon/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/neon", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/vfp/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo/vfp", 0xbea15a10) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sudo", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=24663, ...}) = 0
mmap2(NULL, 24663, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb6fcf000
close(3) = 0
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libaudit.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\364\"\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=107848, ...}) = 0
mmap2(NULL, 237700, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6f74000
mprotect(0xb6f8d000, 65536, PROT_NONE) = 0
mmap2(0xb6f9d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19000) = 0xb6f9d000
mmap2(0xb6f9f000, 61572, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb6f9f000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/sudo/libselinux.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libselinux.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0@R\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=108036, ...}) = 0
mmap2(NULL, 179236, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6f48000
mprotect(0xb6f61000, 65536, PROT_NONE) = 0
mmap2(0xb6f71000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19000) = 0xb6f71000
mmap2(0xb6f73000, 3108, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb6f73000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/sudo/libutil.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libutil.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\200\n\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=9800, ...}) = 0
mmap2(NULL, 73908, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6f35000
mprotect(0xb6f37000, 61440, PROT_NONE) = 0
mmap2(0xb6f46000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0xb6f46000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/sudo/libsudo_util.so.0", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\320=\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=79628, ...}) = 0
mmap2(NULL, 145056, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6f11000
mprotect(0xb6f24000, 61440, PROT_NONE) = 0
mmap2(0xb6f33000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12000) = 0xb6f33000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/sudo/libpthread.so.0", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libpthread.so.0", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\25K\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=113596, ...}) = 0
mmap2(NULL, 152152, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6eeb000
mprotect(0xb6efe000, 61440, PROT_NONE) = 0
mmap2(0xb6f0d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12000) = 0xb6f0d000
mmap2(0xb6f0f000, 4696, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb6f0f000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/sudo/libc.so.6", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libc.so.6", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\331v\1\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=971712, ...}) = 0
mmap2(NULL, 1040988, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6dec000
mprotect(0xb6ed6000, 61440, PROT_NONE) = 0
mmap2(0xb6ee5000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xe9000) = 0xb6ee5000
mmap2(0xb6ee8000, 8796, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb6ee8000
close(3) = 0
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libcap-ng.so.0", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0H\16\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=13860, ...}) = 0
mmap2(NULL, 78068, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6dd8000
mprotect(0xb6ddb000, 61440, PROT_NONE) = 0
mmap2(0xb6dea000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0xb6dea000
close(3) = 0
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libpcre2-8.so.0", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\250\31\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=415588, ...}) = 0
mmap2(NULL, 479836, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6d62000
mprotect(0xb6dc7000, 61440, PROT_NONE) = 0
mmap2(0xb6dd6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x64000) = 0xb6dd6000
close(3) = 0
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libdl.so.2", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0000\n\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=9772, ...}) = 0
mmap2(NULL, 73924, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6d4f000
mprotect(0xb6d51000, 61440, PROT_NONE) = 0
mmap2(0xb6d60000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0xb6d60000
close(3) = 0
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6fcd000
set_tls(0xb6fcdbd0) = 0
mprotect(0xb6ee5000, 8192, PROT_READ) = 0
mprotect(0xb6d60000, 4096, PROT_READ) = 0
mprotect(0xb6f0d000, 4096, PROT_READ) = 0
mprotect(0xb6dd6000, 4096, PROT_READ) = 0
mprotect(0xb6dea000, 4096, PROT_READ) = 0
mprotect(0xb6f33000, 4096, PROT_READ) = 0
mprotect(0xb6f46000, 4096, PROT_READ) = 0
mprotect(0xb6f71000, 4096, PROT_READ) = 0
mprotect(0xb6f9d000, 4096, PROT_READ) = 0
mprotect(0x43f000, 4096, PROT_READ) = 0
mprotect(0xb6fd8000, 4096, PROT_READ) = 0
munmap(0xb6fcf000, 24663) = 0
set_tid_address(0xb6fcd778) = 10974
set_robust_list(0xb6fcd780, 12) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0xb6eef66d, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0xb6e13841}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0xb6eef6f1, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0xb6e13841}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
ugetrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
statfs("/sys/fs/selinux", 0xbea1655c) = -1 ENOENT (No such file or directory)
statfs("/selinux", {f_type=EXT2_SUPER_MAGIC, f_bsize=4096, f_blocks=7438627, f_bfree=6853088, f_bavail=6769594, f_files=1855392, f_ffree=1745592, f_fsid={val=[2118024466, 2550696797]}, f_namelen=255, f_frsize=4096, f_flags=ST_VALID|ST_NOATIME}) = 0
brk(NULL) = 0x192b000
brk(0x194c000) = 0x194c000
openat(AT_FDCWD, "/proc/filesystems", O_RDONLY|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, "nodev\tsysfs\nnodev\ttmpfs\nnodev\tbd"..., 1024) = 386
read(3, "", 1024) = 0
close(3) = 0
access("/etc/selinux/config", F_OK) = -1 ENOENT (No such file or directory)
prlimit64(0, RLIMIT_AS, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_AS, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_CORE, NULL, {rlim_cur=0, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_CPU, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_CPU, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_DATA, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_DATA, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_FSIZE, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_FSIZE, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_LOCKS, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_MEMLOCK, NULL, {rlim_cur=65536*1024, rlim_max=65536*1024}) = 0
prlimit64(0, RLIMIT_NOFILE, NULL, {rlim_cur=1024, rlim_max=1024*1024}) = 0
prlimit64(0, RLIMIT_NOFILE, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = -1 EPERM (Operation not permitted)
prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=RLIM64_INFINITY}, NULL) = -1 EPERM (Operation not permitted)
prlimit64(0, RLIMIT_NOFILE, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
prlimit64(0, RLIMIT_NPROC, NULL, {rlim_cur=2962, rlim_max=2962}) = 0
prlimit64(0, RLIMIT_NPROC, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = -1 EPERM (Operation not permitted)
prlimit64(0, RLIMIT_NPROC, {rlim_cur=2962, rlim_max=2962}, NULL) = 0
prlimit64(0, RLIMIT_RSS, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_RSS, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}, NULL) = 0
fcntl64(0, F_GETFL) = 0x2 (flags O_RDWR)
fcntl64(1, F_GETFL) = 0x2 (flags O_RDWR)
fcntl64(2, F_GETFL) = 0x2 (flags O_RDWR)
openat(AT_FDCWD, "/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=3041456, ...}) = 0
mmap2(NULL, 2097152, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb6b4f000
mmap2(NULL, 2596864, PROT_READ, MAP_PRIVATE, 3, 0x6d000) = 0xb68d5000
close(3) = 0
openat(AT_FDCWD, "/etc/localtime", O_RDONLY|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=2329, ...}) = 0
fstat64(3, {st_mode=S_IFREG|0644, st_size=2329, ...}) = 0
read(3, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\10\0\0\0\10\0\0\0\0"..., 4096) = 2329
_llseek(3, -1479, [850], SEEK_CUR) = 0
read(3, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\t\0\0\0\t\0\0\0\0"..., 4096) = 1479
close(3) = 0
stat64("/etc/sudo.conf", {st_mode=S_IFREG|0644, st_size=3975, ...}) = 0
openat(AT_FDCWD, "/etc/sudo.conf", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=3975, ...}) = 0
read(3, "#\n# Default /etc/sudo.conf file\n"..., 4096) = 3975
read(3, "", 4096) = 0
close(3) = 0
geteuid32() = 1000
access("/usr/local/bin/sudo", X_OK) = -1 ENOENT (No such file or directory)
access("/usr/bin/sudo", X_OK) = 0
stat64("/usr/bin/sudo", {st_mode=S_IFREG|S_ISUID|0755, st_size=135928, ...}) = 0
openat(AT_FDCWD, "/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=2996, ...}) = 0
read(3, "# Locale name alias data base.\n#"..., 4096) = 2996
read(3, "", 4096) = 0
close(3) = 0
openat(AT_FDCWD, "/usr/share/locale/en_US.UTF-8/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US.utf8/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.UTF-8/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.utf8/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
write(2, "sudo", 4sudo) = 4
write(2, ": ", 2: ) = 2
write(2, "effective uid is not 0, is /usr/"..., 133effective uid is not 0, is /usr/bin/sudo on a file system with the 'nosuid' option set or an NFS file system without root privileges?) = 133
ioctl(2, TCGETS, {B9600 opost isig icanon echo ...}) = 0
) = 1
write(2, "\n", 1
) = 1
exit_group(1) = ?
+++ exited with 1 +++
"작업" $ sudo strace gpiomon --bias=pull-down --rising-edge gpiochip0 15명령:
execve("/usr/bin/gpiomon", ["gpiomon", "--bias=pull-down", "--rising-edge", "gpiochip0", "15"], 0xbed83760 /* 16 vars */) = 0
brk(NULL) = 0x17ce000
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6f11000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=24663, ...}) = 0
mmap2(NULL, 24663, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb6f0a000
close(3) = 0
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libgpiod.so.2", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\260!\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=21952, ...}) = 0
mmap2(NULL, 86024, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6ed4000
mprotect(0xb6ed9000, 61440, PROT_NONE) = 0
mmap2(0xb6ee8000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0xb6ee8000
close(3) = 0
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libc.so.6", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\331v\1\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=971712, ...}) = 0
mmap2(NULL, 1040988, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6dd5000
mprotect(0xb6ebf000, 61440, PROT_NONE) = 0
mmap2(0xb6ece000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xe9000) = 0xb6ece000
mmap2(0xb6ed1000, 8796, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb6ed1000
close(3) = 0
set_tls(0xb6f12180) = 0
mprotect(0xb6ece000, 8192, PROT_READ) = 0
mprotect(0xb6ee8000, 4096, PROT_READ) = 0
mprotect(0x4a1000, 4096, PROT_READ) = 0
mprotect(0xb6f13000, 4096, PROT_READ) = 0
munmap(0xb6f0a000, 24663) = 0
rt_sigprocmask(SIG_BLOCK, [INT TERM], NULL, 8) = 0
signalfd4(-1, [INT TERM], 8, 0) = 3
openat(AT_FDCWD, "/dev", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_CLOEXEC|O_DIRECTORY) = 4
fstat64(4, {st_mode=S_IFDIR|0755, st_size=3300, ...}) = 0
brk(NULL) = 0x17ce000
brk(0x17ef000) = 0x17ef000
getdents64(4, 0x17ce1b0 /* 165 entries */, 32768) = 4896
getdents64(4, 0x17ce1b0 /* 0 entries */, 32768) = 0
close(4) = 0
openat(AT_FDCWD, "/dev/gpiochip0", O_RDWR|O_CLOEXEC) = 4
lstat64("/dev/gpiochip0", {st_mode=S_IFCHR|0600, st_rdev=makedev(0xfe, 0), ...}) = 0
stat64("/dev/gpiochip0", {st_mode=S_IFCHR|0600, st_rdev=makedev(0xfe, 0), ...}) = 0
access("/sys/bus/gpio/devices/gpiochip0/dev", R_OK) = 0
openat(AT_FDCWD, "/sys/bus/gpio/devices/gpiochip0/dev", O_RDONLY) = 5
read(5, "254:0\n", 15) = 6
close(5) = 0
ioctl(4, GPIO_GET_CHIPINFO_IOCTL, 0xbee98018) = 0
openat(AT_FDCWD, "/dev/gpiochip1", O_RDWR|O_CLOEXEC) = 5
lstat64("/dev/gpiochip1", {st_mode=S_IFCHR|0600, st_rdev=makedev(0xfe, 0x1), ...}) = 0
stat64("/dev/gpiochip1", {st_mode=S_IFCHR|0600, st_rdev=makedev(0xfe, 0x1), ...}) = 0
access("/sys/bus/gpio/devices/gpiochip1/dev", R_OK) = 0
openat(AT_FDCWD, "/sys/bus/gpio/devices/gpiochip1/dev", O_RDONLY) = 6
read(6, "254:1\n", 15) = 6
close(6) = 0
ioctl(5, GPIO_GET_CHIPINFO_IOCTL, 0xbee98018) = 0
close(4) = 0
close(5) = 0
openat(AT_FDCWD, "/dev/gpiochip0", O_RDWR|O_CLOEXEC) = 4
lstat64("/dev/gpiochip0", {st_mode=S_IFCHR|0600, st_rdev=makedev(0xfe, 0), ...}) = 0
stat64("/dev/gpiochip0", {st_mode=S_IFCHR|0600, st_rdev=makedev(0xfe, 0), ...}) = 0
access("/sys/bus/gpio/devices/gpiochip0/dev", R_OK) = 0
openat(AT_FDCWD, "/sys/bus/gpio/devices/gpiochip0/dev", O_RDONLY) = 5
read(5, "254:0\n", 15) = 6
close(5) = 0
ioctl(4, GPIO_GET_CHIPINFO_IOCTL, 0xbee98058) = 0
ioctl(4, GPIO_GET_LINEINFO_IOCTL, 0xbee9807c) = 0
ioctl(4, GPIO_GET_LINEEVENT_IOCTL, 0xbee9809c) = 0
ioctl(4, GPIO_GET_LINEINFO_IOCTL, 0xbee9803c) = 0
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 1 ([{fd=5, revents=POLLIN}])
read(5, "\233\\D\336\201\10\0\0\1\0\0\0\0\0\0\0", 16) = 16
fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(0x88, 0), ...}) = 0
write(1, "event: RISING EDGE offset: 15 t"..., 63event: RISING EDGE offset: 15 timestamp: [ 9353.872825499]
) = 63
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 1 ([{fd=5, revents=POLLIN}])
read(5, "\213\273\312\6\203\10\0\0\1\0\0\0\0\0\0\0", 16) = 16
write(1, "event: RISING EDGE offset: 15 t"..., 63event: RISING EDGE offset: 15 timestamp: [ 9358.847687563]
) = 63
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000) = 0 (Timeout)
poll([{fd=5, events=POLLIN|POLLPRI}, {fd=3, events=POLLIN|POLLPRI}], 2, 10000^C) = 1 ([{fd=3, revents=POLLIN}])
strace: Process 10962 detached
답변1
Allwinner_H3_Datasheet 섹션 3.3 ~pg80에 따라(하단 링크를 통해)바나나 파이 페이지, EINT핀만 인터럽트를 지원합니다.
동일한 Banana Pi 페이지에 따르면 CON2-P128에 해당하므로 PC4또는 핀 중 하나가 아니므 H3로 인터럽트가 지원되지 않습니다.PAPG EINT
소프트웨어(커널 GPIO 드라이버나 커널 GPIO 드라이버 모두 libgpiod)가 이 라인이 인터럽트를 제공하도록 할 수 있는 방법은 없습니다. 유일한 옵션은 해당 라인을 폴링하거나 EINT핀 중 하나로 전환하는 것입니다 .
libgpiod v2 gpioset그런데, 성능 최적화로 행 값을 얻기 위해 대화형 모드를 사용하도록 제안한 의견 중 하나입니다 . 이 모드의 작성자로서 이것은 작동하지 않습니다. gpioset라인 출력이 저장되고 반환된 값은 get라인이 현재 설정된 값입니다(몇 번 전환하여 추적을 잃을 경우). 그래서 당신이 원하는 것이 아닙니다. 일반 규칙 - 외부 드라이버의 입력 라인에 사용하지 마십시오 gpioset. 마법이 사라질 것입니다.
답변2
나는 의 저자입니다 libgpiod. 실행 gpiomon하여 파일 설명자가 폴링 이벤트를 발생시키지 않는지 확인할 수 있습니까 strace? 그렇지 않은 경우 커널이 인터럽트를 보고하지 않는 것입니다. 이는 드라이버가 잘못 작동하거나(가능성 없음) 하드웨어가 이러한 인터럽트를 생성하지 않음을 의미합니다(가능성 있음).
어떤 드라이버를 사용하고 있습니까? 마더보드가 업스트림 장치 트리를 사용합니까?
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