**************************************** * ****************************** Cross-compile libusb on Ubuntu, libusb-compat, usbutils and usb_modeswitch ************************************* ****************************
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Cross-compile libusb, libusb-compat, usbutils, and usb_modeswitch on Ubuntu ***
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Compiling environment: Ubuntu 9.04, arm-linux-gcc-3.4.4.
Compile object: libusb-1.0.2, libusb-compat-0.1.3, usbutils-0.11 and usb_modeswitch-1.0.5
Tool description:
Usb_modeswitch
Realize wireless network interface card from USB Storage mode to Modem mode, see: http://www.draisberghof.de/usb_modeswitch
Libusb, libusb-compat
Usb_modeswitch requires libusb support.
Libusb is divided into version 1.0 and version 0.1. Version 1.0 is not backward compatible with version 0.1 and requires support from libusb-compat. Therefore, you can install both version 1.0 and version 0.1, but it cannot be the same as the fashion version 0.1 and libusb-compat. See: http://www.libusb.org/
Usbutils
Tool for viewing usb device information in Linux/** the libusb and libusb-compat parts are mainly recorded below. After all, after some time, some problems encountered at that time cannot be remembered */
Before Cross-compilation, configure. Enter the configuration command on the terminal:./configure -- host = arm-linux -- prefix =
After the configuration is complete, enter make install and press enter to display a bunch of information. The last part of the information is: * ********************* List 1 *************** **************
...
Libraries have been installed in:
If you ever happen to want to link against installed libraries
In a given directory, LIBDIR, you must either use libtool, and
Specify the full pathname of the library, or use the '-llibdir'
Flag during linking and do at least one of the following:
-Add LIBDIR to the 'LD _ LIBRARY_PATH 'environment variable
During execution
-Add LIBDIR to the 'LD _ RUN_PATH 'environment variable
During linking
-Use the '-Wl,-rpath-Wl, libdir' linker flag
-Have your system administrator add LIBDIR to '/etc/ld. so. conf' See any operating system documentation about shared libraries
More information, such as the ld (1) and ld. so (8) manual pages.
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This is because other tools need to be cross-compiled. They all need support from the libusb library, therefore, you need to put the library generated by libusb to the folder corresponding to the tool chain (/opt/crosstool/arm-linux/gcc-3.4.4-glibc-2.3.5/arm-linux lib and include ). If you only copy the header file and Library to the corresponding directory and continue compiling libusb-compat, a problem will occur.
When you enter the configuration command./configure -- host = arm-linux -- prefix =
A prompt is displayed, indicating that the LIBUSB package is not found. (This problem is actually prompted in Listing 1)
* *********************** List 2 ************* *************
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Checking for libusb_defaults 0... configure: error: Package requirements (libusb-1.0> = 0.9.1) were not met: No package 'libusb-1.0 'foundConsider adjusting the PKG_CONFIG_PATH environment variable if you
Installed software in a non-standard prefix. Alternatively, you may set the environment variables LIBUSB_1_0_CFLAGS
And libusb_00000_libs to avoid the need to call pkg-config.
See the pkg-config man page for more details.
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This occurs because the. pc file under pkgconfig generated by libusb is not copied over (you also need to modify the prefix path parameters inside), see: http://www.linuxidc.com/Linux/2011-03/33432.htm
If the problem persists after replication, add PKG_CONFIG_PATH.
The printed information on the terminal is
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Checking for libusb_defaults 0... yes
Configure: creating./config. status
Config. status: creating libusb. pc
Config. status: creating libusb-config
Config. status: creating Makefile
Config. status: creating libusb/Makefile
Config. status: creating examples/Makefile
Config. status: creating config. h
Config. status: executing depfiles commands
Config. status: executing libtool commands
Config. status: executing default commands
...
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