Patch from abbotti@mev.co.uk (Ian Abbott):

Sometimes USB support breaks due to API changes in 2.6 or vendor patches (e.g.
Fedora Core 5's 2.6.15 kernel), so it would be useful to have a configure option
to disable it, like there is for PCMCIA.

diff --git a/configure.ac b/configure.ac
index 0da9c48ad3cbf6033a11983078d81623e27f6132..cd4d921bc173b90d33388115cb7b6b37ad6094e2 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -74,12 +74,19 @@ else
        AC_MSG_NOTICE([PCMCIA support disabled])
        AM_CONDITIONAL(CONFIG_PCMCIA,false)
 fi
+AC_ARG_ENABLE([usb],[  --disable-usb           Disable support for USB devices],
+       [ENABLE_USB=$enableval],[ENABLE_USB="yes"])
+if test "$ENABLE_USB" = "yes" ; then
+       AS_LINUX_CONFIG_OPTION_MODULE(CONFIG_USB)
+else
+       AC_MSG_NOTICE([USB support disabled])
+       AM_CONDITIONAL(CONFIG_USB,false)
+fi
 AC_ARG_ENABLE([kbuild], [  --enable-kbuild     Build modules using kernel's kbuild system (needs recent 2.6 kernel)],
        [ENABLE_KBUILD=$enableval], [ENABLE_KBUILD="no"])
 AM_CONDITIONAL([CONFIG_KBUILD], [test ${ENABLE_KBUILD} = "yes"])
 AS_LINUX_CONFIG_OPTION_MODULE(CONFIG_ISA)
 AS_LINUX_CONFIG_OPTION_MODULE(CONFIG_PCI)
-AS_LINUX_CONFIG_OPTION_MODULE(CONFIG_USB)
 
 AC_DEFINE(CONFIG_COMEDI_DEBUG, true, [Define if debugging is enabled])
 AC_DEFINE(CONFIG_COMEDI_8255, true, [Define if 8255 support is enabled])