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Altera_Forum's avatar
Altera_Forum
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15 years ago

[help]How to use libusb in uClinux

Hi all. I'm trying to compile some code that require usb.h in libusb. Could you tell me how to use it in uClinux. I've search in menuconfig for this library but not found. Or I have to cross compi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi,

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Now I can write to ttyUSB0, but when I use "cat /dev/ttyUSB0" from telnet terminal, and write "at<cr><lf>" to ttyUSB0 from jtag terminal, I receive a lot of "at ok at ok at ok..." from telnet terminal. If I do the same on my Ubuntu PC, I receive just 1 "at ok" as normal.

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I think that you are sending 'AT' commands to your 3G modem. Maybe your modem echo-back the command to your serial terminal and it may make troubles. How about the mode of echo-back?

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Besides that, when I use "chat" program in uClinux to communicate with my usb3g, it can't get any response back. I can't understand this strange :(:( , please help.

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I don't know such thing. The only way to help you is 'Debugging' by yourself!

Kazu