_liso_t Struct Reference
[Device driver]

#include <lisodsp.h>

Detailed Description

lisodsp info structure.

This structure holds all informations about a lisodsp device.

Data Fields

liso_t * magic

Magic number.

volatile int unload

True while unloading module.

volatile int fake_reader

True enable timer fake reader.

proc_dir_entry * proc

Proc FS.

liso_fmt_desc_t def_desc

Default format description.

int def_sampling

Default sampling rate.

int def_stereo

Default stereo.

const liso_convertor_t * def_convertor

Default PCM convertor.

int def_format

Default PCM format.

int min_sampling

Minimal sampling rate.

int max_sampling

Maximal sampling rate.

int max_frag_size

Maximum # of PCM per frag.

unsigned int frag_us

Frag duration in micro-second.

atomic_t output_delay_us

External delay (in us).

unsigned int timer_offset

Value to program the timer.

int dev_unit

Sound DSP unit (minor #).

semaphore w_open_sem

Write opened semaphore.

semaphore r_open_sem

Read opened semaphore.

int max_writers

Max number of writers.

int idleness_threshold

late frags to become idle

volatile int active_devices

bitfield of current active devices

liso_subdev_t subdev [(sizeof(int)<< 3)-1]

The writer sub-devices.

liso_subdev_t reader

The reader device.

wait_queue_head_t wr_waitq

Writers wait queue.

wait_queue_head_t rd_waitq

Readers wait queue.

struct {

   int   disabled

All timer stuff disabled.

   timer_list   list

Linux timer list.

   tq_struct   task

Task to be executed by sheduler.

   wait_queue_head_t *   wait

Dying wait queue.

   volatile unsigned   cnt

Overall timer counter.

   unsigned int   offset

Timer interval in jiffies.

} timer

Timer info.

Field Documentation

liso_subdev_t _liso_t::subdev[(sizeof(int)<< 3)-1]

The writer sub-devices.

Warning:
Must be followed by the reader sub-device.

liso_subdev_t _liso_t::reader

The reader device.

Warning:
Must be just after subdev[] array.

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

lisodsp.h

lisodsp developer documentation
version 0.5.0

Generated on June 2004
by doxygen 1.3.7

_liso_t Struct Reference [Device driver]

Detailed Description

Data Fields

Field Documentation

_liso_t Struct Reference
[Device driver]