Hello,
I'm using the wonderful Koliqi (Fadil Berisha)'s set of patches found here https://github.com/koliqi/imx23-olinuxino
So I'm able to use kernel 3.6 and as you can see in another post, I have successfully enabled the second SSP port.
I also need to enable the UART pins on UEXT.
I don't know what I have got to modify / to do in the kernel menuconfig in order to enable / use the TXD and RXD pins.
Or simply, it is already running?
In /dev/ I see
MAKEDEV cpu_dma_latency input mmcblk0 net ptmx shm tty tty12 tty17 tty21 tty26 tty30 tty35 tty4 tty44 tty49 tty53 tty58 tty62 ttyAMA0 vcsa
block disk kmsg mmcblk0p1 network_latency pts snd tty0 tty13 tty18 tty22 tty27 tty31 tty36 tty40 tty45 tty5 tty54 tty59 tty63 ttyAPP0 vcsa1
bus fd log mmcblk0p2 network_throughput random stderr tty1 tty14 tty19 tty23 tty28 tty32 tty37 tty41 tty46 tty50 tty55 tty6 tty7 urandom xconsole
char full loop0 mmcblk1 null root stdin tty10 tty15 tty2 tty24 tty29 tty33 tty38 tty42 tty47 tty51 tty56 tty60 tty8 vcs zero
console initctl mem mmcblk1p1 ppp rtc0 stdout tty11 tty16 tty20 tty25 tty3 tty34 tty39 tty43 tty48 tty52 tty57 tty61 tty9 vcs1
I tried the following
sudo echo 'BOOOO' > /dev/ttyAMA0
and
sudo echo 'BOOOO' > /dev/ttyAPP0
but it tells me
-bash: /dev/ttyAMA0: Permission denied
and
-bash: /dev/ttyAPP0: Permission denied
I also removed "console=ttyAMA0,115200" from the command line but it didn't change anything.
Any suggestions?
Thank you in advance :-)
Marco
Hi Marco,
are you try chmod 777 on your prefered device and retry to open ?
Best
Roberto
Roberto!!!
You saved my day!!!
Thank you very much!!
I owe you a beer :-))))