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9.9 How can I set up /dev/audio to point to the external jack on a 700?

Alter the /dev/audio device file as follows:

crw-rw-rw-   1 root     sys       57 0x208011  /dev/audio  ; external jack
crw-rw-rw-   1 root     sys       57 0x208000  /dev/audio  ; internal speaker

The commands are:
  mknod /dev/audio c 57 0x2080??   <- replace ?? with 00 or 11 as shown above.

(Thanks to Lou Kvitek.)