Adding a GPIO IRQ support for Linux lib#3197
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July 8, 2026 07:48
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Please sign this CLA, add a proper body/description to the commit and ammend the commit with the -s flag. |
This commit adds a GPIO IRQ option for Linux ecosystems. With this new update, we can allow non-STM32 chips that doesn't support other Linux distros (for instance, RPI CM5), to allow an IRQ trigger for a GPIO device. Signed-off-by: Vtolent3 <villyjay.tolentino@analog.com>
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see also the styling errors
| /** Linux platform specific GPIO IRQ platform ops structure. */ | ||
| extern const struct no_os_irq_platform_ops linux_gpio_irq_ops; | ||
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| #endif /* LINUX_GPIO_IRQ_H_ */ No newline at end of file |
| .enable = linux_gpio_irq_enable, | ||
| .disable = linux_gpio_irq_disable, | ||
| .remove = linux_gpio_irq_ctrl_remove, | ||
| }; No newline at end of file |
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| /** | ||
| * @brief Get the last latched level for a line (1 = HIGH, 0 = LOW). | ||
| */ |
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document prams and return for each api
| strncpy(req.consumer, "no_os_gpio_irq", sizeof(req.consumer) - 1); | ||
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| ret = ioctl(chip_fd, GPIO_V2_GET_LINE_IOCTL, &req); | ||
| close(chip_fd); |
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check for ret before closing
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This commit adds a GPIO IRQ option for Linux ecosystems.
With this new update, we can allow non-STM32 chips that doesn't support other Linux distros (we are using CM5 for this), to allow an IRQ trigger for a GPIO device.
Our exact setup would be: