hi Max have you find the answer? how "/dev/eac" is connected with host linux's sound system? I am trying to add my own device driver to android
On Apr 18, 4:02 pm, max <max.xi...@gmail.com> wrote: > Hi David, > > Thanks for your reply. > > When I study the code in frameworks\base\libs\audioflinger > \AudioHardwareGeneric.cpp, I saw it does open the device node "dev/ > eac" to get a File descriptor. Therefore , the question is how "/dev/ > eac" is connected with the host linux's sound system. I have read the > code in external/qemu/hw/goldfish_audio.c, but I still can not figure > out how the device node "/dev/eac" in emulator's linux system is > connected with host linux's sound system. > > Thanks > > On Apr 17, 5:48 pm, David Turner <di...@android.com> wrote: > > > > > On Fri, Apr 17, 2009 at 10:51 AM, max <max.xi...@gmail.com> wrote: > > > > Hi Buddies, > > > > I wanna get understood that why in emulator "dev/eac" is the device of > > > audio, > > > historical reason, but mostly because that's what the emulator-specific > > kernel supports > > > > as I know, in external/qemu/audio, there is all kinds audio drivers, > > > such as oss, alsa, > > > these are only used to send audio output to the host sound system, this has > > nothing > > to do with what is supported in the emulated system. These are not 'drivers' > > by the way, > > just usual call to sound libraries / system interfaces > > > you can have a look at external/qemu/hw/goldfish_audio.c to see the code > > used to > > support sound hardware emulation in Android > > > > but I am very curious why in the android linux system, the "dev/eac" > > > is connected with those drivers. > > > > Anybody can give me some light on that? > > > > Max- Hide quoted text - > > > - Show quoted text -- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting -~----------~----~----~----~------~----~------~--~---
