Messages in this thread |  | | Date | Tue, 07 Nov 2000 10:55:37 +0100 | From | Helge Hafting <> | Subject | Re: Persistent module storage [was Linux 2.4 Status / TODO page] |
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Alan Cox wrote: > > > It would probably be better (in this case) to increment the module count > > when the mixer settings go above 0, and decrement it when the settings > > go totally to 0. This prevents an unwanted unload. > > Thats about 200 lines of code and also about 50,000 emails complaining people > cannot unload sound stuff.
Still, it is so logical. Modules cannot be unloaded when in use. "use" is usually "someone having the device open". But "someone listening to pass-through sound" is effectively using the mixer - the module is in use in another way. Network drivers don't have a /dev/xxx to open/close either.
Having to turn off the master volume before unloading makes sense to me. (The driver may still free up DMA buffers when nobody need them, i.e. when /dev/dsp haven't been used for some time.)
Helge Hafting - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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