I2C
[Linux 2.6 support]

I2C. More...

Functions
char *	i2c_compute_udi (HalDevice *d, int append_num)
	This function will compute the device uid based on other properties of the device.
void	visit_device_i2c_got_parent (HalDevice *parent, void *data1, void *data2)
	Callback when the parent is found or if there is no parent..
void	visit_device_i2c (const char *path, struct sysfs_device *device)
	Visitor function for I2C device.
void	linux_i2c_init ()
	Init function for I2C handling.
void	linux_i2c_detection_done ()
	This function is called when all device detection on startup is done in order to perform optional batch processing on devices.
void	linux_i2c_shutdown ()
	Shutdown function for I2C handling.

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Detailed Description

I2C.

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Function Documentation

char* i2c_compute_udi (  HalDevice *  d, int  append_num )  [static]

This function will compute the device uid based on other properties of the device. Specifically, the following properties are required: i2c.product Other properties may also be used. Requirements for uid: do not rely on bus, port etc.; we want this id to be as unique for the device as we can make sure it doesn't rely on properties that cannot be obtained from the minimal information we can obtain on an unplug event Parameters: d  HalDevice object append_num  Number to append to name if not -1 Returns: New unique device id; only good until the next invocation of this function Definition at line 69 of file linux_i2c.c. References ds_property_get_string(), and HalDevice. Referenced by visit_device_i2c_got_parent().

void visit_device_i2c (  const char *  path, struct sysfs_device *  device )

Visitor function for I2C device. This function parses the attributes present and creates a new HAL device based on this information. Parameters: path  Sysfs-path for device device  libsysfs object for device Note: We also set the path here, because otherwise we can't handle two identical devices per the algorithm used in a rename_and_merge() The point is that we need something unique in the Bus namespace Definition at line 97 of file linux_i2c.c. References drivers_lookup(), ds_device_async_find_by_key_value_string(), ds_device_new(), ds_property_get_string(), ds_property_set_string(), get_parent_sysfs_path(), HAL_LINUX_HOTPLUG_TIMEOUT, HalDevice, is_probing, and visit_device_i2c_got_parent(). Referenced by visit_device().

void visit_device_i2c_got_parent (  HalDevice *  parent, void *  data1, void *  data2 )  [static]

Callback when the parent is found or if there is no parent.. This is where we get added to the GDL.. Parameters: parent  Async Return value from the find call data1  User data data2  User data Definition at line 180 of file linux_i2c.c. References ds_device_find(), ds_gdl_add(), ds_property_set_string(), HalDevice, i2c_compute_udi(), rename_and_merge(), and HalDevice_s::udi. Referenced by visit_device_i2c().

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