| Both the keyboard and the serial ports of the Inka should be connected in order |
| to use it with BRLTTY. The Inka itself is capable of communicating entirely via |
| the keyboard port, but the Linux kernel keyboard driver can't handle this. |
| |
| In order to use the Inka with BRLTTY it is necessary to have the latest version |
| (dated 1998) of the firmware. If the Inka says either "mode 1" or "mode 2" at |
| the end of the version number after it's connected to a computer and turned on |
| then it has the necessary firmware. If it doesn't then it'll probably need an |
| upgrade. To do this, contact Baum and give them the serial number of the Inka |
| (which is printed on the under side of the device). |
| |
| The newer firmware supports two modes of operation. Mode 1 uses the old Inka |
| protocol and transfers data at 57,600 baud with non-standard flow control. Mode |
| 2 uses the new Inka protocol and transfers data at 19,200 baud with no flow |
| control. |
| |
| The Inka defaults to mode 1. This is shown on the braille display when |
| the Inka first initializes or after a soft reset. |
| |
| Before running BRLTTY, change the Inka to mode 2 by pressing tl1+tl2+tr3 (which |
| is the digit 2 represented as a dot-six number). To return to mode 1 (neither |
| necessary nor desirable under Linux), press tl1+tr3 (which is the digit 1 |
| represented as a dot-six number). The new mode setting is shown on the display |
| at the end of the line, after the version number and date of the firmware. |
