4.7.6. hb_gpioinfo
hb_gpioinfo 是一个用于显示 GPIO 引脚信息的工具。它支持以下功能：
显示 GPIO 引脚的基本信息（如引脚名称、偏移量、方向、偏置、驱动方式等）。
显示引脚的当前状态（如输入 / 输出、活动低电平、边缘检测等）。
针对特定平台，显示引脚的额外功能信息（如引脚功能、引脚编号等）。
4.7.6.1. 语法说明
以下是执行 hb_gpioinfo 的命令格式：
hb_gpioinfo [OPTIONS] [line]...
4.7.6.2. 参数选项说明
以下是 chip_log 支持的选项及其说明：
-c, --chip <chip>：限制范围到特定的 GPIO 芯片。-h, --help：显示帮助信息并退出。-s, --strict：检查所有引脚，不假设引脚名称是唯一的。-v, --version：显示版本信息并退出。
4.7.6.3. 各项命令选项及其功能说明
显示帮助信息
命令：
hb_gpioinfo --help
功能： 显示该命令的使用帮助信息。
Usage: hb_gpioinfo [OPTIONS] [line]...
Print information about GPIO lines.
Lines are specified by name, or optionally by offset if the chip option is provided.
If no lines are specified then all lines are displayed.
Options:
-c, --chip <chip> restrict scope to a particular chip
-h, --help display this help and exit
-s, --strict check all lines - don't assume line names are unique
--unquoted don't quote line or consumer names
-v, --version output version information and exit
显示所有 GPIO 引脚信息
命令：
root@buildroot:~# hb_gpioinfo
功能： 显示系统中所有 GPIO 引脚的详细信息。
打印输出：
root@buildroot:~# hb_gpioinfo
gpiochip0 - 8 lines: @31000000.gpio: @498-505
[Number] [Mode] [Status] [GpioName] [PinName] [PinNum] [PinFunc]
line 0: unnamed input AON_GPIO_PIN0 498 aon_gpio_0
line 1: unnamed input AON_GPIO_PIN1 499 Default
line 2: unnamed input active-low GPIO Key Power AON_GPIO_PIN2 500 aon_gpio_2
line 3: unnamed input AON_GPIO_PIN3 501 Default
line 4: unnamed input AON_GPIO_PIN4 502 aon_gpio_4
line 5: unnamed input id AON_ENV_VDD 503 aon_gpio_5
line 6: unnamed input id AON_ENV_CNN0 504 aon_gpio_6
line 7: unnamed input AON_ENV_CNN1 505 aon_gpio_7
gpiochip1 - 31 lines: @35060000.gpio: @466-496
[Number] [Mode] [Status] [GpioName] [PinName] [PinNum] [PinFunc]
line 0: unnamed input HSIO_ENET_MDC 466 enetgrp
line 1: unnamed input HSIO_ENET_MDIO 467 enetgrp
line 2: unnamed input HSIO_ENET_TXD_0 468 enetgrp
line 3: unnamed input HSIO_ENET_TXD_1 469 enetgrp
line 4: unnamed input HSIO_ENET_TXD_2 470 enetgrp
line 5: unnamed input HSIO_ENET_TXD_3 471 enetgrp
line 6: unnamed input HSIO_ENET_TXEN 472 enetgrp
line 7: unnamed input HSIO_ENET_TX_CLK 473 enetgrp
line 8: unnamed input HSIO_ENET_RX_CLK 474 enetgrp
line 9: unnamed input HSIO_ENET_RXD_0 475 enetgrp
line 10: unnamed input HSIO_ENET_RXD_1 476 enetgrp
line 11: unnamed input HSIO_ENET_RXD_2 477 enetgrp
line 12: unnamed input HSIO_ENET_RXD_3 478 enetgrp
line 13: unnamed input HSIO_ENET_RXDV 479 enetgrp
line 14: unnamed input HSIO_ENET_PHY_CLK 480 enetgrp
line 15: unnamed input HSIO_SD_WP 481 sdgrp
line 16: unnamed input HSIO_SD_XLK 482 sdgrp
line 17: unnamed input HSIO_SD_CMD 483 sdgrp
line 18: unnamed input HSIO_SD_CDN 484 sdgrp
line 19: unnamed input HSIO_SD_DATA0 485 sdgrp
line 20: unnamed input HSIO_SD_DATA1 486 sdgrp
line 21: unnamed input HSIO_SD_DATA2 487 sdgrp
line 22: unnamed input HSIO_SD_DATA3 488 sdgrp
line 23: unnamed input HSIO_SDIO_WP 489 sdiogrp
line 24: unnamed input HSIO_SDIO_XLK 490 sdiogrp
line 25: unnamed input HSIO_SDIO_CMD 491 sdiogrp
line 26: unnamed output power HSIO_SDIO_CDN 492 hsio_gpio0_26
line 27: unnamed input HSIO_SDIO_DATA0 493 sdiogrp
line 28: unnamed input HSIO_SDIO_DATA1 494 sdiogrp
line 29: unnamed input HSIO_SDIO_DATA2 495 sdiogrp
line 30: unnamed input HSIO_SDIO_DATA3 496 sdiogrp
...
结果解析：
每个引脚的详细信息以以下格式显示：
line <N>: <GpioName> <Mode> <Status> <PinName> <PinNum> <PinFunc>
line <N>：引脚的编号。<GpioName>： GPIO 引脚的名称（如果未命名则显示为 unnamed）。<Mode>：引脚模式（如 input 或 output）。<Status>：引脚状态（如 active-low、 bias=pull-up、 drive=open-drain 等）。<PinName>：引脚的名称。<PinNum>：引脚的编号。<PinFunc>：引脚的复用功能。
显示特定 GPIO 芯片的信息
命令：
root@buildroot:~# hb_gpioinfo -c gpiochip4
功能： 仅显示 GPIO 芯片 gpiochip4 的引脚信息。
打印输出：
root@buildroot:~# hb_gpioinfo -c gpiochip4
gpiochip4 - 32 lines: @34120000.gpio: @379-410
[Number] [Mode] [Status] [GpioName] [PinName] [PinNum] [PinFunc]
line 0: unnamed input LSIO_UART7_RX 379 lsio_gpio0_0
line 1: unnamed input LSIO_UART7_TX 380 lsio_gpio0_1
line 2: unnamed input LSIO_UART7_CTS 381 lsio_gpio0_2
line 3: unnamed input LSIO_UART7_RTS 382 lsio_gpio0_3
line 4: unnamed input LSIO_UART1_RX 383 lsio_gpio0_4
line 5: unnamed input LSIO_UART1_TX 384 lsio_gpio0_5
line 6: unnamed input LSIO_UART1_CTS 385 lsio_gpio0_6
line 7: unnamed input LSIO_UART1_RTS 386 lsio_gpio0_7
line 8: unnamed input LSIO_UART2_RX 387 uart2grp
line 9: unnamed input LSIO_UART2_TX 388 uart2grp
line 10: unnamed input scl LSIO_UART3_RX 389 i2c5grp
line 11: unnamed input sda LSIO_UART3_TX 390 i2c5grp
line 12: unnamed input LSIO_UART4_RX 391 lsio_gpio0_12
line 13: unnamed input LSIO_UART4_TX 392 lsio_gpio0_13
line 14: unnamed input LSIO_SPI0_SCLK 393 Default
line 15: unnamed input LSIO_SPI1_SSN_1 394 Default
line 16: unnamed input LSIO_SPI1_SCLK 395 Default
line 17: unnamed input LSIO_SPI1_SSN 396 Default
line 18: unnamed input LSIO_SPI1_MISO 397 Default
line 19: unnamed input LSIO_SPI1_MOSI 398 Default
line 20: unnamed input LSIO_SPI2_SCLK 399 spi2grp
line 21: unnamed input LSIO_SPI2_SSN 400 spi2grp
line 22: unnamed input LSIO_SPI2_MISO 401 spi2grp
line 23: unnamed input LSIO_SPI2_MOSI 402 spi2grp
line 24: unnamed input LSIO_SPI3_SCLK 403 lsio_gpio0_24
line 25: unnamed input LSIO_SPI3_SSN 404 pinctrl_lpwm1_1
line 26: unnamed input LSIO_SPI3_MISO 405 lsio_gpio0_26
line 27: unnamed input LSIO_SPI3_MOSI 406 lsio_gpio0_27
line 28: unnamed input LSIO_SPI4_SCLK 407 uart5grp
line 29: unnamed input LSIO_SPI4_SSN 408 uart5grp
line 30: unnamed input LSIO_SPI4_MISO 409 lsio_gpio0_30
line 31: unnamed output phyreset LSIO_SPI4_MOSI 410 lsio_gpio0_31
显示特定引脚的信息
命令：
root@buildroot:~# hb_gpioinfo -c gpiochip4 line0 line1
功能： 仅显示 GPIO 芯片 gpiochip4 中的 line0 和 line1 的信息。
打印输出：
root@buildroot:~# hb_gpioinfo -c gpiochip4
gpiochip4 - 32 lines: @34120000.gpio: @379-410
[Number] [Mode] [Status] [GpioName] [PinName] [PinNum] [PinFunc]
line 0: unnamed input LSIO_UART7_RX 379 lsio_gpio0_0
line 1: unnamed input LSIO_UART7_TX 380 lsio_gpio0_1
line 2: unnamed input LSIO_UART7_CTS 381 lsio_gpio0_2
line 3: unnamed input LSIO_UART7_RTS 382 lsio_gpio0_3
line 4: unnamed input LSIO_UART1_RX 383 lsio_gpio0_4
line 5: unnamed input LSIO_UART1_TX 384 lsio_gpio0_5
line 6: unnamed input LSIO_UART1_CTS 385 lsio_gpio0_6
line 7: unnamed input LSIO_UART1_RTS 386 lsio_gpio0_7
line 8: unnamed input LSIO_UART2_RX 387 uart2grp
line 9: unnamed input LSIO_UART2_TX 388 uart2grp
line 10: unnamed input scl LSIO_UART3_RX 389 i2c5grp
line 11: unnamed input sda LSIO_UART3_TX 390 i2c5grp
line 12: unnamed input LSIO_UART4_RX 391 lsio_gpio0_12
line 13: unnamed input LSIO_UART4_TX 392 lsio_gpio0_13
line 14: unnamed input LSIO_SPI0_SCLK 393 Default
line 15: unnamed input LSIO_SPI1_SSN_1 394 Default
line 16: unnamed input LSIO_SPI1_SCLK 395 Default
line 17: unnamed input LSIO_SPI1_SSN 396 Default
line 18: unnamed input LSIO_SPI1_MISO 397 Default
line 19: unnamed input LSIO_SPI1_MOSI 398 Default
line 20: unnamed input LSIO_SPI2_SCLK 399 spi2grp
line 21: unnamed input LSIO_SPI2_SSN 400 spi2grp
line 22: unnamed input LSIO_SPI2_MISO 401 spi2grp
line 23: unnamed input LSIO_SPI2_MOSI 402 spi2grp
line 24: unnamed input LSIO_SPI3_SCLK 403 lsio_gpio0_24
line 25: unnamed input LSIO_SPI3_SSN 404 pinctrl_lpwm1_1
line 26: unnamed input LSIO_SPI3_MISO 405 lsio_gpio0_26
line 27: unnamed input LSIO_SPI3_MOSI 406 lsio_gpio0_27
line 28: unnamed input LSIO_SPI4_SCLK 407 uart5grp
line 29: unnamed input LSIO_SPI4_SSN 408 uart5grp
line 30: unnamed input LSIO_SPI4_MISO 409 lsio_gpio0_30
line 31: unnamed output phyreset LSIO_SPI4_MOSI 410 lsio_gpio0_31