os_hid_device Interface Reference

Representing a single hid interface on a device. More...

#include <os/os_hid.h>

Inheritance diagram for os_hid_device:

Collaboration diagram for os_hid_device:

Public Member Functions
int	os_hid_open_hidraw (const char *path, struct os_hid_device **out_hid)
	Open the given path as a hidraw device. More...

Static Public Member Functions
static int	os_hid_read (struct os_hid_device *hid_dev, uint8_t *data, size_t size, int milliseconds)
	Read the next input report, if any, from the given hid device. More...
static int	os_hid_write (struct os_hid_device *hid_dev, const uint8_t *data, size_t size)
	Write an output report to the given device. More...
static int	os_hid_get_feature (struct os_hid_device *hid_dev, uint8_t report_num, uint8_t *data, size_t size)
	Get a numbered feature report. More...
static int	os_hid_get_feature_timeout (struct os_hid_device *hid_dev, void *data, size_t size, uint32_t timeout)
	Get a feature report with a timeout. More...
static int	os_hid_set_feature (struct os_hid_device *hid_dev, const uint8_t *data, size_t size)
	Set a feature report. More...
static int	os_hid_get_physical_address (struct os_hid_device *hid_dev, uint8_t *data, size_t size)
	Get the physical address. More...
static void	os_hid_destroy (struct os_hid_device *hid_dev)
	Close and free the given device. More...

Data Fields
int(*	read )(struct os_hid_device *hid_dev, uint8_t *data, size_t size, int milliseconds)
int(*	write )(struct os_hid_device *hid_dev, const uint8_t *data, size_t size)
int(*	get_feature )(struct os_hid_device *hid_dev, uint8_t report_num, uint8_t *data, size_t size)
int(*	get_feature_timeout )(struct os_hid_device *hid_dev, void *data, size_t size, uint32_t timeout)
int(*	set_feature )(struct os_hid_device *hid_dev, const uint8_t *data, size_t size)
int(*	get_physical_address )(struct os_hid_device *hid_dev, uint8_t *data, size_t size)
void(*	destroy )(struct os_hid_device *hid_dev)

Detailed Description

Representing a single hid interface on a device.

Member Function Documentation

os_hid_destroy()

static void os_hid_destroy ( struct os_hid_device *  hid_dev )

inlinestatic

Close and free the given device.

os_hid_get_feature()

static int os_hid_get_feature ( struct os_hid_device *  hid_dev, uint8_t  report_num, uint8_t *  data, size_t  size  )

inlinestatic

Get a numbered feature report.

If the device doesn't have more than one feature report, request report 0.

os_hid_get_feature_timeout()

static int os_hid_get_feature_timeout ( struct os_hid_device *  hid_dev, void *  data, size_t  size, uint32_t  timeout  )

inlinestatic

Get a feature report with a timeout.

os_hid_get_physical_address()

static int os_hid_get_physical_address ( struct os_hid_device *  hid_dev, uint8_t *  data, size_t  size  )

inlinestatic

Get the physical address.

For USB devices, the string contains the physical path to the device (the USB controller, hubs, ports, etc). For Bluetooth *devices, the string contains the hardware (MAC) address of the device.

os_hid_open_hidraw()

int os_hid_open_hidraw	(	const char *	path,
		struct os_hid_device **	out_hid
	)

Open the given path as a hidraw device.

See also

hid_hidraw

References U_TYPED_CALLOC.

os_hid_read()

static int os_hid_read ( struct os_hid_device *  hid_dev, uint8_t *  data, size_t  size, int  milliseconds  )

inlinestatic

Read the next input report, if any, from the given hid device.

If milliseconds are negative, this call blocks indefinitely, 0 polls, and positive will block for that amount of milliseconds.

Referenced by psmv_read_one_packet(), and pssense_read_one_packet().

os_hid_set_feature()

static int os_hid_set_feature ( struct os_hid_device *  hid_dev, const uint8_t *  data, size_t  size  )

inlinestatic

Set a feature report.

The first byte of the buffer is the report number, to be followed by the data of the report.

Referenced by hydra_system_enter_motion_control().

os_hid_write()

static int os_hid_write ( struct os_hid_device *  hid_dev, const uint8_t *  data, size_t  size  )

inlinestatic

Write an output report to the given device.

Referenced by psmv_send_led_control_locked().

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The documentation for this interface was generated from the following file:

• auxiliary/os/os_hid.h