May 2017
Beginner to intermediate
470 pages
10h 49m
English
Content preview from Android System Programming
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Goldfish serial port
Android emulator has its own implementation of a virtual serial port. It always reserves the first two virtual serial ports:
- The first one is used to receive kernel messages. This is done by adding the console=ttyS0 parameter to the kernel command line.
- The second one is used to set up the legacy qemud channel, used on older Android platform revisions. This is done by adding android.qemud=ttyS1 on the kernel command line. The qemud channel is implemented as a Linux daemon process used as a channel between the guest and emulator. In the latest emulator version, a QEMU pipe is used instead of qemud.
The following table defines goldfish serial port registers:
|
Offset |
Name |
Abstract |
|
0x00 |
PUT_CHAR |
W: Write ... |
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