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snd_ac97_mixer(9) [centos man page]

SND_AC97_MIXER(9)						 Control/Mixer API						 SND_AC97_MIXER(9)

NAME
snd_ac97_mixer - create an Codec97 component SYNOPSIS
int snd_ac97_mixer(struct snd_ac97_bus * bus, struct snd_ac97_template * template, struct snd_ac97 ** rac97); ARGUMENTS
bus the AC97 bus which codec is attached to template the template of ac97, including index, callbacks and the private data. rac97 the pointer to store the new ac97 instance. DESCRIPTION
Creates an Codec97 component. An struct snd_ac97 instance is newly allocated and initialized from the template. The codec is then initialized by the standard procedure. The template must include the codec number (num) and address (addr), and the private data (private_data). The ac97 instance is registered as a low-level device, so you don't have to release it manually. RETURN
Zero if successful, or a negative error code on failure. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SND_AC97_MIXER(9)

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STRUCT 
BUS_TYPE(9) Device drivers infrastructure STRUCT BUS_TYPE(9) NAME
struct_bus_type - The bus type of the device SYNOPSIS
struct bus_type { const char * name; const char * dev_name; struct device * dev_root; struct bus_attribute * bus_attrs; struct device_attribute * dev_attrs; struct driver_attribute * drv_attrs; const struct attribute_group ** bus_groups; const struct attribute_group ** dev_groups; const struct attribute_group ** drv_groups; int (* match) (struct device *dev, struct device_driver *drv); int (* uevent) (struct device *dev, struct kobj_uevent_env *env); int (* probe) (struct device *dev); int (* remove) (struct device *dev); void (* shutdown) (struct device *dev); int (* online) (struct device *dev); int (* offline) (struct device *dev); int (* suspend) (struct device *dev, pm_message_t state); int (* resume) (struct device *dev); const struct dev_pm_ops * pm; struct iommu_ops * iommu_ops; struct subsys_private * p; }; MEMBERS
name The name of the bus. dev_name Used for subsystems to enumerate devices like ("foou", dev->id). dev_root Default device to use as the parent. bus_attrs Default attributes of the bus. dev_attrs Default attributes of the devices on the bus. drv_attrs Default attributes of the device drivers on the bus. bus_groups Default attributes of the bus. dev_groups Default attributes of the devices on the bus. drv_groups Default attributes of the device drivers on the bus. match Called, perhaps multiple times, whenever a new device or driver is added for this bus. It should return a nonzero value if the given device can be handled by the given driver. uevent Called when a device is added, removed, or a few other things that generate uevents to add the environment variables. probe Called when a new device or driver add to this bus, and callback the specific driver's probe to initial the matched device. remove Called when a device removed from this bus. shutdown Called at shut-down time to quiesce the device. online Called to put the device back online (after offlining it). offline Called to put the device offline for hot-removal. May fail. suspend Called when a device on this bus wants to go to sleep mode. resume Called to bring a device on this bus out of sleep mode. pm Power management operations of this bus, callback the specific device driver's pm-ops. iommu_ops IOMMU specific operations for this bus, used to attach IOMMU driver implementations to a bus and allow the driver to do bus-specific setup p The private data of the driver core, only the driver core can touch this. DESCRIPTION
A bus is a channel between the processor and one or more devices. For the purposes of the device model, all devices are connected via a bus, even if it is an internal, virtual, "platform" bus. Buses can plug into each other. A USB controller is usually a PCI device, for example. The device model represents the actual connections between buses and the devices they control. A bus is represented by the bus_type structure. It contains the name, the default attributes, the bus' methods, PM operations, and the driver core's private data. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 STRUCT BUS_TYPE(9)

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