|  | Linux 2.4 Sound Changes | 
|  | 2000-September-25 | 
|  | Christoph Hellwig, <hch@infradead.org> | 
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|  | === isapnp support | 
|  |  | 
|  | The Linux 2.4 Kernel does have reliable in-kernel isapnp support. | 
|  | Some drivers (sb.o, ad1816.o awe_wave.o) do now support automatically | 
|  | detecting and configuring isapnp devices. | 
|  | If you have a not yet supported isapnp soundcard, mail me the content | 
|  | of '/proc/isapnp' on your system and some information about your card | 
|  | and its driver(s) so I can try to get isapnp working for it. | 
|  |  | 
|  |  | 
|  |  | 
|  | === soundcard resources on kernel commandline | 
|  |  | 
|  | Before Linux 2.4 you had to specify the resources for sounddrivers | 
|  | statically linked into the kernel at compile time | 
|  | (in make config/menuconfig/xconfig). In Linux 2.4 the resources are | 
|  | now specified at the boot-time kernel commandline (e.g. the lilo | 
|  | 'append=' line or everything that's after the kernel name in grub). | 
|  | Read the Configure.help entry for your card for the parameters. | 
|  |  | 
|  |  | 
|  | === softoss is gone | 
|  |  | 
|  | In Linux 2.4 the softoss in-kernel software synthesizer is no more aviable. | 
|  | Use a user space software synthesizer like timidity instead. | 
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|  |  | 
|  |  | 
|  | === /dev/sndstat and /proc/sound are gone | 
|  |  | 
|  | In older Linux versions those files exported some information about the | 
|  | OSS/Free configuration to userspace. In Linux 2.3 they were removed because | 
|  | they did not support the growing number of pci soundcards and there were | 
|  | some general problems with this interface. | 
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