| | Open Sound System |
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int oss_install_audiodev (
int audiocore_version,
oss_device_t * osdev,
oss_device_t * master_osdev,
char *name,
const audiodrv_t * driver,
int driver_size,
int flags,
unsigned int format_mask,
void *devc,
int parent
);
int oss_install_audiodev_with_devname (
int audiocore_version,
oss_device_t * osdev,
oss_device_t * master_osdev,
char *name,
const audiodrv_t * driver,
int driver_size,
int flags,
unsigned int format_mask,
void *devc,
int parent,
char *devfile_name
);
Low level audio drivers use the oss_install_audiodev function to install audio engines. This routine creates a new entry in the audio_engines table and returns the index to it.
The oss_install_audiodev_with_devname() function can be used to install an audio device with nonstandard device file name. The extra devfile_name paramater can be used for this purpose.
| Parameter | Description |
audiocore_version | Verion number of the OSS audio core version this driver was compiled for. Pass OSS_AUDIO_DRIVER_VERSION in this parameter. |
osdev | OSS device handle for the device. Drivers typically get this as a parameter of their attach entry point. |
master_osdev | In general drivers should pass the same value as in the osdev parameter. Some virtual/pseudo drivers need to pass the osdev parameter of the "master" device. |
name | Descriptive name of the audio engine. This name will be shown to the users by applications in their setup dialogs. |
driver | Pointer to the callback function list that defines the actual driver. See the description of audiodrv_t for more info. |
driver_size | Size of the callback function list. You should pass sizeof(audiodrv_t) in this parameter. |
flags | Audio device flags for the device. See Audio device flags for more info. |
format_mask | Bitmask for the audio formats supported by the device. See the Supported audio formats section for more info. If the device supports different formats for recording and playback the driver should set the iformat_mask and oformat_mask fields of the audio_engines entry after the oss_install_audiodev call. |
devc | Pointer to the driver defined sound card information structure. |
parent | Currently not used. Pass value of -1 in this parameter. |
devfile_name | This parameter of oss_install_audiodev_with_devname() can be used to assign a nonstandard device file name to the device. For example names like "spdin" or "loopback" can be used. |
This function returns a negative value (-errno) if the call failed to create an engine. This should only happen if the system runs out of memory or other resources. After getting an error the driver should give up and return error from the attach() entry point.
Drivers need to initialize some fields of the audio_engines entry after creating the engine. See the Device Initialization subsection for the adev_t structure.
This function can only be called during attach of a device.
| vmix_core/vmix_core.c | Set the master sampling rate of given vmix instance. |
| audio/oss_audio_core.c | Audio core functionality of OSS |
| include/audio_core.h | Internal definitions for the OS audio core |
| remux/oss_remux.c | Multi channel playback support for devices with multiple stereo engines. |
| oss_hdaudio/oss_hdaudio.c | The High Definition Audio (HDA/Azalia) driver. |
| oss_cmpci/oss_cmpci.c | Driver for CMEDIA CM8738 PCI audio controller. |
| oss_userdev/oss_userdev.c | This entry point is used to create new userdev instances and to redirect clients to them. |
| oss_userdev/oss_userdev_devicepair.c | Client/server audio device pair for oss_userdev |
| oss_envy24ht/oss_envy24ht.c | VIA ENVY24HT chipset driver. |
| oss_trident/oss_trident.c | Driver for Trident 4DWAVE, ALI 5451 and SiS 7918 audio chips |
| oss_cs4281/oss_cs4281.c | Driver for Crystal PCI audio controller. |
| oss_solo/oss_solo.c | Driver for ESS Solo PCI audio controller. |
| oss_sbpci/oss_sbpci.c | Creative/Ensoniq AudioPCI97 driver (ES1371/ES1373) |
| oss_madi/oss_madi.c | Driver for RME MADI and AES32 audio interfaces |
| oss_ymf7xx/oss_ymf7xx.c | Driver for Yamaha YMF7xx PCI audio controller. |
| oss_imux/oss_imux.c | Pseudo driver for sharing one input device between multiple apps. |
| oss_via823x/oss_via823x.c | Driver for the VIA8233/8235 AC97 audio controller |
| oss_digi96/oss_digi96.c | Driver for RME Digi96 family |
| oss_fmedia/oss_fmedia.c | Driver for FM801 FM801 PCI audio controller. |
| oss_ich/oss_ich.c | Driver for the Intel ICH AC97 audio controller |
| oss_sblive/oss_sblive.c | Driver for Creative SB Live/Audigy/2/4. Audio, MIDI and mixer services. |
| oss_audiopci/oss_audiopci.c | Creative/Ensoniq AudioPCI driver (ES1370 "CONCERT" ASIC and AKM4531 codec/mixer) |
| oss_audioloop/oss_audioloop.c | OSS audio loopback (virtual) driver |
| oss_emu10k1x/oss_emu10k1x.c | Driver for Creative emu10k1x audio controller |
| oss_cmi878x/oss_cmi878x.c | Driver for C-Media CMI8788 PCI audio controller. |
| oss_audigyls/oss_audigyls.c | Driver for Creative Audigy LS audio controller |
| oss_cs461x/oss_cs461x.c | Driver for Crystal cs461x and cs461x PCI audio controllers |
| oss_geode/oss_geode.c | Driver for the NS/Cyrix/AMD Geode AC97 audio controller |
| oss_via97/oss_via97.c | Driver for the VIA VT82C686A AC97 audio controller |
| oss_ali5455/oss_ali5455.c | Driver for the ALI 5455 (AC97) audio controller |
| oss_usb/ossusb_audio.c | USB audio streaming interface support |
| oss_atiaudio/oss_atiaudio.c | Driver for the ATI IXP (AC97) audio controller |
| oss_sbxfi/oss_sbxfi.c | Driver for Sound Blaster X-Fi (emu20k) |
| oss_audiocs/oss_audiocs.c | Driver for the UltraSparc workstations using CS4231 codec for audio |
| oss_envy24/oss_envy24.c | Driver for IC Ensemble ENVY24 based audio cards. |
| oss_envy24/envy24_direct.c | Direct 24 bit multich driver for Envy24. |
| Linux/osscore.c | Linux kernel version specific wrapper routines. |