50 lines
1.5 KiB
Diff
50 lines
1.5 KiB
Diff
From: Hector Bujanda <hector.bujanda@digi.com>
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Date: Tue, 14 Apr 2020 15:51:52 -0700
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Subject: [PATCH] gpio: uapi: add userspace support for setting debounce on
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GPIO line
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Added GPIO_SET_DEBOUNCE_IOCTL define and gpioline_debounce struct.
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This allows calling gpiod_set_debounce() function through char device ioctl to
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gpiolib.
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Upstream-Status: Inappropriate [DEY specific]
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https://jira.digi.com/browse/DEL-6425
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Signed-off-by: Hector Bujanda <hector.bujanda@digi.com>
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Signed-off-by: Javier Viguera <javier.viguera@digi.com>
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---
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include/uapi/linux/gpio.h | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/include/uapi/linux/gpio.h b/include/uapi/linux/gpio.h
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index eaaea3d8e6b4..638f6dfb6e76 100644
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--- a/include/uapi/linux/gpio.h
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+++ b/include/uapi/linux/gpio.h
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@@ -336,6 +336,17 @@ struct gpioline_info {
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char consumer[GPIO_MAX_NAME_SIZE];
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};
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+/**
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+ * struct gpioline_debounce - GPIO line debounce
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+ * @line_offset: the local offset on this GPIO device, fill this in when
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+ * requesting the line information from the kernel
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+ * @debounce_usec: debounce in uSeconds to set for this line
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+ */
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+struct gpioline_debounce {
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+ __u32 line_offset;
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+ __u32 debounce_usec;
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+};
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+
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/* Maximum number of requested handles */
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#define GPIOHANDLES_MAX 64
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@@ -501,6 +512,7 @@ struct gpioevent_data {
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*/
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#define GPIO_GET_CHIPINFO_IOCTL _IOR(0xB4, 0x01, struct gpiochip_info)
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#define GPIO_GET_LINEINFO_UNWATCH_IOCTL _IOWR(0xB4, 0x0C, __u32)
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+#define GPIO_SET_DEBOUNCE_IOCTL _IOW(0xB4, 0xA0, struct gpioline_debounce)
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/*
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* v2 ioctl()s
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