Raspberry Pi Forums

cleverca22

how do you run c code in python?, if i had an example i could make the above code work in it

cleverca22

http://www.raspberrypi.org/phpBB3/viewt ... 48#p219638

this code looks like it may also be of use

cleverca22

kainhero wrote:i cant seem to get this to work, everytime i try running it, itll give me the error saying it cant find module uinput, but lsmod shows its there

the error is likely talking about the python module uinput, not the kernel module uinput (which is used by the python module)

cleverca22

just rmdir /media/usbstick if you did anything wrong, it will refuse to do bad stuff, and just give an error as for formatting, get a root shell (sudo -i) then type in mkfs. and hit tab twice you should get a list of options similar to this: mkfs mkfs.bfs mkfs.cramfs mkfs.ext2 mkfs.ext3 mkfs.ext4 mk...

cleverca22

that schematic will feed 5v data signals directly into the 3.3v only RXD pin! as for the interface type (ttl, wiegand, stripe emulation), you need to tie the FS pin to either gnd/vcc/beep to select a format(read the id-20 datasheet) i think FS in the above schematic is connected to GND, which matche...

cleverca22

proc is also semi-optional, only real reason to mount is if if you need files from there (ps, top, free, vmstat, the list goes on)
sys is more important, if you wanted to use the gpio interface from that, everything else could be static on the fs with the entire program in a single static binary

cleverca22

(i havent checked the posts linked above) from the testing ive done under android, the normal framebuffer calls to do page flipping appear to just work on the raspberrypi fork of android (dumbed down example with no error checking) ioctl(fd, FBIOGET_VSCREENINFO, &info); // get defaults from kernel (...

cleverca22

if i remember correctly, the normal vnc server is done entirely in userspace, and makes no use of ANY hardware (keyb/mouse/framebuffer), so it wont care what the gpu mem is but the framebuffer will default to whatever is native for the currently connected hdmi device, and that may suck some up unexp...

cleverca22

sounds like a decent job for oprofile!

cleverca22

after looking at things more, the razdroid 'fork' (it was only 2 commits long) was 'broken' from the very first commit and checking the original raspberrypi fork of linux, the framebuffer code never had the page flipping problem, ever (it was good from the very first commit) simply switching over to...

cleverca22

http://www.raspberrypi.org/phpBB3/viewt ... 50#p119941

this shows pretty clearly, where all the power is going when in halt state

its the ethernet!

cleverca22

if you had full control of both LAN's and had a decent vpn client (which may need port forwarding), you can make a nat-free link between them basically, each lan needs its own subnet like 192.168.0.* and 192.168.1.* the .0.* lan needs to be setup to forward all traffic for .1.* towards its local pi ...

cleverca22

the c code may be usefull as a hint, to point out what functions to use in a python lib (if one exists), and it could also be used for making your own python lib, or a simple c program that takes orders from python Most importantly though, nobody ever wants to "press and hold a key, with no regard t...

cleverca22

I has Win95 on floppies (can't remember how many, but it was a lot). Not every computer had a CDROM back then! One of the floppies expired, but it was just a stock 3.5" disk formatted in DMF, so creating a new one wasn't the end of the world, even if the install procedure was... There was a chap ca...

cleverca22

http://gallery.earthtools.ca/download/ventctl.tar i used this program many years ago to do something similar, it has 2 parts first part opens /dev/input/x, and sniffs the keyboard for a hotkey like shift (remove this code) the second part uses x11 api's to find the ventrilo window, and fake the A k...

cleverca22

the driver would need to be modified to support multiple transmitters

cleverca22

That worked great. here is the batch file I am running now to change to 10Hz, 115kbps operation. thanks for the help! sudo killall gpsd stty speed 9600 </dev/ttyAMA0 { sleep 0.5;printf '$PMTK251,115200*1F\r\n'; }>/dev/ttyAMA0 stty speed 115200 </dev/ttyAMA0 { sleep 0.5;printf '$PMTK220,100*2F\r\n';...

cleverca22

sounds like you need to change the hostname on one of them

cleverca22

www.whatismyip.com as for forwarding ports, it helps to know that vnc has 2 modes, either end can act as a server if you run 'vncviewer -listen' at the client side, and forward port 5500 to it, the server can connect back, so the server ip/firewall dont matter i use that mode when the person i'm hel...

cleverca22

There's a known bug with the PL011 UART driver in the kernel where it will send a random "0" bit when activated. https://github.com/raspberrypi/linux/issues/148 You can apply the patch linked (by compiling the kernel yourself, see http://elinux.org/RPi_Kernel_Compilation) to correct the behaviour b...

cleverca22

it needs a delay after the spike, something like this might work { sleep 1;printf '\r\n$PMTK104*37\r\n'; } > /dev/ttyAMA0 this would open the serial port once, and connect it first to 'sleep 1' (which doesnt output anything, but gives the gps more then enough time to recover from the glitch) then do...

cleverca22

depending on the receiver (the gps), the problem might simply be an unexpected dip that is within 1 byte-time of the transmission
if you wait 2 byte-times ( 18/BAUD seconds), then it will properly decode the following bytes, and the only issue would be what it does with that first 'byte'

cleverca22

the 'vncserver' script is setup to spawn an entirely new X session, usually at :1

it sounds more like you want x0vncserver, which is a bit more manual, but shares an existing X session

cleverca22

the only working arm version of teamviewer that ive seen, is the android build's, but android itself is uber-slow on the pi right now, your better off finding out whats wrong with vnc (and optionaly tunneling vnc thru openvpn, if you want to bypass more firewalls and make it more secure)

cleverca22

would the bug not trigger if you open the port and hold it open?

then write bytes out as-needed

(edit: the other thread implies that it only happens at open)

Search found 581 matches

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