how to deal with the serial port in android mobile?

Question

actually I know no thing about serial port. but I see an example of sending it an at-command:

echo -e \"AT\" > /dev/smd0

What is /dev/sm

Answer 1

1. Using c4droid
2. Open .c file
3. Modify line 173 to printf("atinout version ...\n"); ... is version number
4. Now compile your code in c4droid
5. retrieve file from c4droid directory cp data/data/com.n0n3m4.droidc/files/temp /sdcard