A Guy Called Tyketto writes: > On Wed, Jan 16, 2002 at 09:44:14AM +0800, Wayne Chan wrote: >> Hi, >> >> Just some info for Slackware-8.0 users that I have discovered. >> >> For those who install the kernel 2.4.5 image and source, please note that >> the kernel is compile with "/dev file system support" enable under "File >> systems". >> >> This create a problem when compiling alsa driver. Alsa config will assuming >> that devfs will be automatically mounted at boot. So after compiling and >> install the alsa drivers, when you do a modprobe, the alsa driver will tries >> to create the "/dev" directory under devfs (Under normal case, "/dev" should >> be at /proc/asound). So without this "/dev" directory, even though you see >> the driver loaded correctly, there will no sound and all alsa utilities >> throw out error like "mixer not found" blah blah blah. >> >> Solutions: Before compiling alsa drivers, do either >> >> 1) With kernel 2.4.5 and higher source, >> - do "make menuconfig". >> - Unselect "/dev file system support" under file system. >> - Save and exit >> - do "make dep" >> (Recompile of kernel not necessary) > > recompilation of the kernel would be necessary since you are going to > have to compile that kernel for not having that support. any other previous > kernels, unless you had compiled them yourself, will have DevFS support and > loadable at boot time (Pat V. throws in a monolithic kernel for stock > installation).
Thanks for your input. Yap, your're right and I'm wrong. Recompile is necessary. > >> Or >> >> 2) Recompile kernel with "/dev file system support" AND "Automatically mount >> at boot" enable. >> (Note: Slackware-8.0 have already prepared /etc/rc.S to mount devfs >> whenever necessary) > > This totally has worked for me since alsa 0.5.10. If you're enabling > DevFS support, it will have to be started BEFORE you do your modprobe for the > alsa module. If not, it'll croak, or you'll have to use ./snddevices to create > the device before doing the modprobe. It's best that if you do use DevFS that > you SHOULD enable it at boot time. (there is no reason for you to NOT mount it > at boot time.) Trouble is Slackware-8.0 kernel 2.4.5 is compiled with devfs but not mounted by default. So when I grep alsa-driver 0.5.12 and compile, it just doesn't work even when I use ./snddevices to create the device. Took me quite a few recompiling of the kernel and the driver before I realize. :( Anyway, for those who are using slackware-8.0, just take note of devfs. :) > > BTW.. make xconfig works wonders. :) > > BL. > -- > Brad Littlejohn | Email: [EMAIL PROTECTED] > Unix Systems Administrator, | [EMAIL PROTECTED] > Web + NewsMaster, BOFH.. Smeghead! :) | http://www.wizard.com/~tyketto > PGP: 1024D/E319F0BF 6980 AAD6 7329 E9E6 D569 F620 C819 199A E319 F0BF > _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
