Problem with GPS on my drone

Mirumod, Macgyver, hull, cam, propeller, leg, cross, ball bearing mods... etc.
Post Reply
jlarique
Newcomer
Posts: 2
Joined: 23 May 2012, 07:57

Problem with GPS on my drone

Post by jlarique » 23 May 2012, 08:06

Hi there,

I'm a student and i have to make an application running on an ar drone that read GPS data by usb and transmit them to a computer by socket.
But I'm not able to read on the GPS because of the missing module cdc-acm.

So I tried to do this
insmod /data/video/usbserial.ko
insmod /data/video/ftdi_sio.ko
insmod /data/video/cdc-acm.ko

But for the three commands I had this message :
insmod can't insert [...] : unknown symbol in module, or unknown parameter

So I use the command dmesg to see what's the problem and I saw this :
usbserial: unknown symbol usb_autopm_put_interface
usbserial: unknown symbol usb_autopm_get_interface
usbserial: unknown symbol __gnu_mcount_nc
ftdi_sio: unknown symbol usb_serial_port_softint
ftdi_sio: unknown symbol usb_serial_disconnect
ftdi_sio: unknown symbol __gnu_mcount_nc
ftdi_sio: unknown symbol usb_serial_probe
ftdi_sio: unknown symbol usb_serial_port_register
ftdi_sio: unknown symbol usb_serial_port_deregister
ftdi_sio: unknown symbol kmalloc_caches
cdc-acm: unknown symbol usb_autopm_put_interface
cdc-acm: unknown symbol usb_autopm_get_interface
cdc-acm: unknown symbol __gnu_mcount_nc
cdc-acm: unknown symbol ukmalloc_caches

These modules can't be insert when the module usbcore is missing so I tried to insmod it and that's what i obtained :
insmod: can't insert '/data/video/usbcore.ko': Invalid argument (after insmod /data/video/usbcore.ko)
usbcore: module is alreeady loaded (with dmesg)

So anyone have an idea of how to resolve this problem ?

Thank you =)

firmware : 1.10.12

ps: for all the commands, i was connected to the drone by telnet.

szuu
Strange wobble
Posts: 249
Joined: 05 Sep 2011, 03:04

Re: Problem with GPS on my drone

Post by szuu » 23 May 2012, 12:02

http://www.ardrone-flyers.com/forum/vie ... f=8&t=2786" onclick="window.open(this.href);return false;

jlarique
Newcomer
Posts: 2
Joined: 23 May 2012, 07:57

Re: Problem with GPS on my drone

Post by jlarique » 23 May 2012, 14:59

I'm sorry but i don't find any solution to my problem in this page.

dsborets have no problem with modules but mine doesn't want to load so i can't access to ttyACM0 (that should be my GPS).

I would like to know how to insert these 3 modules on the drone.

szuu
Strange wobble
Posts: 249
Joined: 05 Sep 2011, 03:04

Re: Problem with GPS on my drone

Post by szuu » 23 May 2012, 15:11

this was just a suggestion you could connect to a serial port, avoiding all USB issues :)

i never tried using the drone USB port, but the error messages seem to indicate a version mismatch... perhaps the modules were compiled for older firmware version. downgrade and see if it helps.

Post Reply

Who is online

Users browsing this forum: No registered users and 5 guests