Messages in this thread | | | Date | Tue, 11 Jul 2006 14:44:06 +0200 | From | Adrian Bunk <> | Subject | OSS driver removal, 2nd round (v3) |
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Now that I've sent the first round of actually removing the code for OSS drivers where ALSA drivers without regressions exist for the same hardware, it's time for a second round amongst the remaining drivers.
Removing OSS drivers where ALSA drivers for the same hardware exists has two reasons:
1. remove obsolete and mostly unmaintained code 2. get bugs in the ALSA drivers reported that weren't previously reported due to the possible workaround of using the OSS drivers
The list below divides the OSS drivers into the following three categories: 1. ALSA drivers for the same hardware 2. ALSA drivers for the same hardware with known problems 3. no ALSA drivers for the same hardware
The proposed timeline is: - 2.6.18: let the drivers under 1. in the list below depend on OSS_OBSOLETE_DRIVER - 2.6.20: remove the options depending on OSS_OBSOLETE_DRIVER - 2.6.22: remove the code for the drivers that were depending on OSS_OBSOLETE_DRIVER from the kernel tree
To make a long story short:
If you are using an OSS driver because the ALSA driver doesn't work equally well on your hardware listed under 1. below, send me an email with a bug number in the ALSA bug tracking system now.
A small FAQ:
Q: But OSS is kewl and ALSA sucks! A: The decision for the OSS->ALSA move was four years ago. If ALSA sucks, please help to improve ALSA.
Q: What about the OSS emulation in ALSA? A: The OSS emulation in ALSA is not affected by my patches (and it's not in any way scheduled for removal).
Please review the following list:
1. ALSA drivers for the same hardware
DMASOUND_PMAC SOUND_ACI_MIXER and RADIO_MIROPCM20 SOUND_AD1816 SOUND_AD1889 SOUND_ADLIB SOUND_EMU10K1 SOUND_FUSION SOUND_NM256 SOUND_OPL3SA2
2. ALSA drivers for the same hardware with known problems
SOUND_CS4232 - ALSA #1520 (Soundchip was not detected on HP Omnibook 5700 CTX)
SOUND_ES1371 - ALSA #1774 (missing joystick connector support for PCI Ensoniq ES1371)
SOUND_ICH - ALSA #1764 (Recording signal quality is inacceptable (using OSS API)) - Alan Cox: ALSA driver lacks "support for AC97 wired touchscreens and the like"
SOUND_SSCAPE - ALSA #2234 (driver does not find Soundscape Elite)
SOUND_TRIDENT - ALSA #1293 (device supported by OSS but not by ALSA) - maintainer of the OSS driver wants his driver to stay
SOUND_VIA82CXXX - ALSA #1906 (1-second overruns reported by arecord, complete system hang with jackd -d alsa)
3. no ALSA drivers for the same hardware
DMASOUND_ATARI DMASOUND_PAULA DMASOUND_Q40 SOUND_AEDSP16 SOUND_AU1550_AC97 SOUND_BCM_CS4297A SOUND_HAL2 SOUND_KAHLUA SOUND_MSNDCLAS SOUND_MSNDPIN SOUND_MSS (also due to SOUND_PSS, SOUND_TRIX and perhaps SOUND_AEDSP16) SOUND_PAS SOUND_PSS SOUND_SB (also due to SOUND_KAHLUA, SOUND_PAS and perhaps SOUND_AEDSP16) SOUND_SH_DAC_AUDIO SOUND_TRIX SOUND_VIDC SOUND_VRC5477 SOUND_VWSND SOUND_WAVEARTIST
SOUND_IT8172 - Ralf Baechle: Both board based on the ITE 8172 chipset are on my death list already; I will probably remove it after 2.6.18 is out unless against all expectation I receive patches.
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