johnp789

initial creation

johnp789

[root@storm ~]# ping www.google.com    # This is the problem
ping: unknown host www.google.com
[root@storm ~]# ping -c3 8.8.8.8       # I can ping by IP, though
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=43 time=32.5 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=43 time=34.9 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=43 time=33.9 ms

--- 8.8.8.8 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms

johnp789

$ sudo modprobe uvcvideo
modprobe: ERROR: ctx=0x1248010 path=/lib/modules/3.12.6-1-ARCH/kernel/drivers/media/v4l2-core/videobuf2-vmalloc.ko.gz error=No such file or directory
modprobe: ERROR: ctx=0x1248010 path=/lib/modules/3.12.6-1-ARCH/kernel/drivers/media/v4l2-core/videobuf2-vmalloc.ko.gz error=No such file or directory
modprobe: ERROR: could not insert 'uvcvideo': Unknown symbol in module, or unknown parameter (see dmesg)
$ dmesg | tail
[    4.124482] NVRM: on the primary VGA device. The NVIDIA Linux graphics driver
[    4.124483] NVRM: requires the use of a text-mode VGA console. Use of other console
[    4.124484] NVRM: drivers including, but not limited to, vesafb, may result in
[    4.124484] NVRM: corruption and stability problems, and is not supported.
[    4.433600] systemd-journald[172]: File /var/log/journal/4a20a8f3d37f4149ac05d3ccefd43e1d/user-120.journal corrupted or uncleanly shut down, renaming and replacing.

johnp789

$ uname -a
Linux storm 3.12.7-2-ARCH #1 SMP PREEMPT Sun Jan 12 13:09:09 CET 2014 x86_64 GNU/Linux
$ ps aux | grep rsync
root      1032  0.0  0.0  60324  3772 pts/0    D    16:23   0:00 rsync -aAX --info=progress2 /home/john/Documents/scratch/root/bin /home/john/Documents/scratch/root/boot /home/john/Documents/scratch/root/dev /home/john/Documents/scratch/root/etc /home/john/Documents/scratch/root/home /home/john/Documents/scratch/root/lib /home/john/Documents/scratch/root/mnt /home/john/Documents/scratch/root/opt /home/john/Documents/scratch/root/proc /home/john/Documents/scratch/root/root /home/john/Documents/scratch/root/run /home/john/Documents/scratch/root/sbin /home/john/Documents/scratch/root/srv /home/john/Documents/scratch/root/sys /home/john/Documents/scratch/root/tmp /home/john/Documents/scratch/root/usr /home/john/Documents/scratch/root/var .
root      1033  0.6  0.0      0     0 pts/0    Z    16:23   0:02 [rsync] <defunct>
john      1430  0.0  0.0  10668  1060 pts/0    S+   16:29   0:00 grep rsync

johnp789

Script started on Sun 02 Feb 2014 02:32:06 PM CST
ibjncursesrgcc/findutils/cdrkit2python2T_Buildroot?1034h[john@storm OpenWRT_Buildroot]$ sudo pacman -KS make git subversion wget unzip zl
[sudo] password for john:
warning: make-4.0-2 is up to date -- reinstalling
warning: git-1.8.5.3-1 is up to date -- reinstalling
warning: subversion-1.8.5-2 is up to date -- reinstalling
warning: wget-1.15-1 is up to date -- reinstalling
warning: unzip-6.0-6 is up to date -- reinstalling
warning: zlib-1.2.8-3 is up to date -- reinstalling
warning: ncurses-5.9-6 is up to date -- reinstalling

johnp789

Script started on Fri 02 Jan 2015 05:16:31 PM CST
# comedi_calibrate -f /dev/comedi0 --reset --calibrate
Warning: device may not be not fully calibrated due to insufficient information.
Please file a bug report at https://bugs.comedi.org/ and attach this output.
This output will also allow comedi_calibrate to execute more
quickly in the future.
Forcing option: --verbose
Forcing options: --reset --dump --calibrate --results
Id
Driver name: cb_pcidas64

johnp789

I've made a small modification to the tut2.c demo to have it call
comedi_data_read() three times for each range available on a pci-das6402/16 on
channel 0 and then again on channel 1.  For the test, I've configured for about
0.4V to be applied on differential channel 0, and I've jumpered channel 1 so
that it has 0V on it.  

I'm seeing three problems: 

1) The first reading in each range looks erroneous.  Is this an instance where
comedi_data_read_hint() should be called with a short settling time before

johnp789

RT5350 # printenv
bootcmd=tftp
bootdelay=5
baudrate=57600
ethaddr="00:AA:BB:CC:DD:10"
ipaddr=10.10.10.123
serverip=10.10.10.3
ramargs=setenv bootargs root=/dev/ram rw
addip=setenv bootargs $(bootargs) ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname):$(netdev):off
addmisc=setenv bootargs $(bootargs) console=ttyS0,$(baudrate) ethaddr=$(ethaddr) panic=1

johnp789

execve("/usr/bin/python3", ["python3", "./kamvas.py"], 0x7ffea8f34528 /* 16 vars */) = 0
brk(NULL)                               = 0x55e245a3c000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=527840, ...}) = 0
mmap(NULL, 527840, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f5d8a66c000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0]\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=145336, ...}) = 0

johnp789

import os
import sys
from evdev import UInput, ecodes, AbsInfo

PEN_MAX_X = 1 << 16 - 1
PEN_MAX_Y = 1 << 16 - 1
PEN_MAX_Z = 8191
RESOLUTION = 5080

#pressure sensitive pen tablet area with 2 stylus buttons and no eraser