1 Linux 2.4 Sound Changes
2 2000-September-25
3 Christoph Hellwig, <hch@caldera.de>
4
5
6
7 === isapnp support
8
9 The Linux 2.4 Kernel does have reliable in-kernel isapnp support.
10 Some drivers (sb.o, ad1816.o awe_wave.o) do now support automatically
11 detecting and configuring isapnp devices.
12 If you have a not yet supported isapnp soundcard, mail me the content
13 of '/proc/isapnp' on your system and some information about your card
14 and its driver(s) so I can try to get isapnp working for it.
15
16
17
18 === soundcard resources on kernel commandline
19
20 Before Linux 2.4 you had to specify the resources for sounddrivers
21 statically linked into the kernel at compile time
22 (in make config/menuconfig/xconfig). In Linux 2.4 the ressources are
23 now specified at the boot-time kernel commandline (e.g. the lilo
24 'append=' line or everything that's after the kernel name in grub).
25 Read the Configure.help entry for your card for the parameters.
26
27
28 === softoss is gone
29
30 In Linux 2.4 the softoss in-kernel software synthesizer is no more aviable.
31 Use a user space software synthesizer like timidity instead.
32
33
34
35 === /dev/sndstat and /proc/sound are gone
36
37 In older Linux versions those files exported some information about the
38 OSS/Free configuration to userspace. In Linux 2.3 they were removed because
39 they did not support the growing number of pci soundcards and there were
40 some general problems with this interface.
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42
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