Comment 2 for bug 92777

I'm getting this too (installed Feisty today). sl-modem-daemon will work using alsa drivers in the majority of cases.

The ungrab_winmodem module is used to free a modem that's been grabbed by the standard serial driver. This seems to be a problem with some but not all cards that might use sl-modem-daemon.

the source for ungrab_winmodem is in sl-modem-source but is not built by default. It's normally easily built but fails in feisty because it can't find linux/config.h in the kernel headers package.

Also sl-modem-source will not build under feisty currently:

make[2]: Entering directory `/usr/src/modules/sl-modem/drivers'

> gcc-4.1 -I/lib/modules/2.6.20-14-generic/build/include -o kernel-ver
> kernel-ver.c
> kernel-ver.c: In function ‘main’:
> kernel-ver.c:11: error: ‘UTS_RELEASE’ undeclared (first use in this
> function)
> kernel-ver.c:11: error: (Each undeclared identifier is reported only once
> kernel-ver.c:11: error: for each function it appears in.)
> make[2]: *** [kernel-ver] Error 1

Smartlink appear to have been bought out by connexant and I've yet to find the source on linmodems.org. fesity's version is higher than the debian unstable version. So as of right now I'm stuck on how to fix the problem.