mirror of
https://github.com/apache/nuttx.git
synced 2026-10-06 05:47:54 +00:00
f6a9f8239d
This commit adds comprehensive signal notification support to the capture driver, enabling applications to be asynchronously notified when capture edge events occur on any channel, rather than having to poll for events. Background: The capture driver is used to measure frequency and duty cycle of external signals by detecting edges (rising/falling). Previously, applications could only retrieve captured values through periodic polling via CAPIOC_GETDUTY and CAPIOC_GETFREQ ioctl commands, which is inefficient for event-driven applications. Problem: Without event notification, applications must: - Continuously poll the capture device to check for new events - Waste CPU cycles in polling loops - Experience higher latency in responding to capture events - Cannot efficiently handle multiple capture channels simultaneously Solution: This commit adds a signal-based notification mechanism that allows applications to register callbacks for specific capture channels and edge types (rising, falling, or both). When the hardware detects the configured edge, a signal is sent to the registered task. Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com> |
||
|---|---|---|
| .. | ||
| android | ||
| arpa | ||
| crypto | ||
| cxx | ||
| net | ||
| netinet | ||
| netpacket | ||
| nuttx | ||
| ssp | ||
| sys | ||
| .gitignore | ||
| aio.h | ||
| alloca.h | ||
| assert.h | ||
| byteswap.h | ||
| ctype.h | ||
| debug.h | ||
| dirent.h | ||
| dlfcn.h | ||
| dsp.h | ||
| dspb16.h | ||
| elf.h | ||
| elf32.h | ||
| elf64.h | ||
| endian.h | ||
| err.h | ||
| errno.h | ||
| execinfo.h | ||
| fcntl.h | ||
| fixedmath.h | ||
| fnmatch.h | ||
| ftw.h | ||
| gcov.h | ||
| getopt.h | ||
| glob.h | ||
| grp.h | ||
| hex2bin.h | ||
| iconv.h | ||
| ifaddrs.h | ||
| imx_container.h | ||
| inttypes.h | ||
| iso646.h | ||
| langinfo.h | ||
| libgen.h | ||
| libintl.h | ||
| limits.h | ||
| locale.h | ||
| lzf.h | ||
| malloc.h | ||
| mqueue.h | ||
| netdb.h | ||
| nl_types.h | ||
| nxflat.h | ||
| obstack.h | ||
| poll.h | ||
| pthread.h | ||
| pty.h | ||
| pwd.h | ||
| regex.h | ||
| resolv.h | ||
| sched.h | ||
| search.h | ||
| semaphore.h | ||
| shadow.h | ||
| signal.h | ||
| spawn.h | ||
| stdbool.h | ||
| stddef.h | ||
| stdint.h | ||
| stdio.h | ||
| stdlib.h | ||
| stdnoreturn.h | ||
| string.h | ||
| strings.h | ||
| syscall.h | ||
| syslog.h | ||
| termios.h | ||
| threads.h | ||
| time.h | ||
| unistd.h | ||
| utime.h | ||
| uuid.h | ||
| wait.h | ||
| wchar.h | ||
| wctype.h | ||