Apply your Screen configuration

The following procedure describes how to apply your Screen configuration by using a command-line interface.

Screen processes the configuration file, graphics.conf, only when Screen services (screen) starts.

If your target system allows it, you can modify the configuration file and use the following procedure to apply your new configuration. Otherwise, you need to make your modifications to graphics.conf on your host, and then build it into your OS image filesystem . When your target boots with the new IFS, and screen starts, your new configuration takes effect.

Prior to starting this procedure, ensure the following:

Your target hardware is running the QNX Neutrino RTOS.
You can run a shell and commands, such as pidin.
You've modified graphics.conf with your desired configuration.

To apply your Screen configuration:

Stop screen by using the following command:

slay screen
Verify that your screen process has stopped. Run:
pidin -p screen
and verify that the screen process isn't running.
Optional: If you haven't already, set the LD_LIBRARY_PATH environment variable to include the directories of the shared libraries that Screen needs.
```
export LD_LIBRARY_PATH=:/lib:/usr/lib:/lib/dll:/proc/boot
                    
```

Optional: If you are configuring mtouch and using the devi driver, ensure that you have io-hid and devi-hid running. Run:

pidin ar

From the output of pidin ar, verify that io-hid and devi-hid are running.

Here's an example of the proceses that could be running on your platform:

     pid Arguments
       1 procnto-smp-instr -v
    4098 devc-seromap -e -p -F -b115200 -c48000000/16 0x48020000^2,106
    4099 slogger
    4100 pipe
    4101 i2c-omap35xx-omap4 -p 0x48070000 -i 88
    4102 i2c-omap35xx-omap4 -p 0x48072000 -i 89
    4103 i2c-omap35xx-omap4 -p 0x48060000 -i 93
    4104 i2c-omap35xx-omap4 -p 0x48350000 -i 94
    8201 io-audio -d omap4pdm
   16394 devb-mmcsd-blaze cam silent blk noatime,cache=8m mmcsd ioport=0x4809c100,ioport=0x4a056000,irq=115,dma=30,dma=61,dma=62 dos exe=all
   16395 spi-master -u 0 -d omap4430 base=0x48098100,irq=97,sdma=0
   16396 spi-master -u 3 -d omap4430 base=0x480ba100,irq=80,sdma=0
   16397 io-usb -domap4430-mg ioport=0x4a0ab000,irq=124 -dehci-omap3 ioport=0x4a064c00,irq=109
   20494 io-pkt-v4 -ptcpip -dsmsc9500 mac=004460515624
   24591 dhcp.client
   32784 devc-pty
   32786 inetd
   36881 qconn
   36883 sh
   73748 fs-cifs 10.222.109.24:/test /t screen
  176149 io-hid -dusb
  180246 devi-hid -PrR1280 touch
  184343 pidin ar

To confirm that io-hid is running with devh-usb.so, you can run the command:

pidin -p io-hid mem

pid tid  name                  prio STATE            code data   stack
176149   1 t/bin/io-hid        10r SIGWAITINFO       36K  124K   24K(516K)*
176149   2 t/bin/io-hid        21r RECEIVE           36K  124K   4096(12K)
176149   3 t/bin/io-hid        10r RECEIVE           36K  124K   4096(20K)
176149   5 t/bin/io-hid        10r REPLY             36K  124K   4096(20K)
176149   6 t/bin/io-hid        10r RECEIVE           36K  124K   4096(20K)
            libc.so.3          @ 1000000             460K   16K
            libhiddi.so.1      @78000000              32K  4096
            devh-usb.so        @78009000              16K  4096
            libusbdi.so.2      @7800e000              40K  8192

Restart screen by running screen.
Verify that there were no warnings generated from your new configuration by running sloginfo.

See the "Debugging" section for more information.