Hi everybody.
I'm using uClinux and compiling with arm-linux-gcc.
I would like to connect to a USB GPS and retrieve its data saving them in a file.
The USB GPS is seen as a common read-only tty port .
I think I setted properly the \dev\ttyUSB0 port using the
struct termios options
and I can open it, but I can't manage to successfully retrieve data from it, it gives me blank spaces or unreadable characters.....
I tried with cat but it works only in the bash and like above.
If someone can give me any hint it would be very kind of him/her and I would be gratefull.
Thanks in advance and
1) Please I'm sorry for my English
2) Sorry I'm a Linux newby

Okay, first, lets clarify some jargonolgy. You aren't reading from a USB port, you're reading from a device. The device happens to be connected via a USB interface, however that is probably irrelevant. You seem to have found that the device is /dev/ttyUSB0 (but not \dev\ttyUSB0).
Since you've stated that you've used a struct termios to configure the communications with the device, I conclude that you are using your own C code to talk to the device. You should post here, in [CODE] [/CODE] tags, the relevant code fragments.
If the device can be expected to communicate using ASCII string data, you should be able to use a serial communications tool such as C-Kermit to communicate with the device. If that works, then you can conclude that the device and related cabling and configuration is correct, and that you should focus on your code.
Using bash to do serial communications is a recipe for frustration.

--- rod.

Duplicate post, follow discussion here:
http://www.linuxquestions.org/questi...9/#post4588381