http://bugs.winehq.org/show_bug.cgi?id=29188
--- Comment #3 from Roger rogerx.oss@gmail.com 2011-11-27 20:17:36 CST --- OK. I think TIOCSERGETLSR is technically undefined on my Gentoo distro because I see no files within /usr/include containing this except for:
/usr/include/asm-generic/ioctls.h:#define TIOCSERGETLSR 0x5459 /* Get line status register */
Wine does pull in: checking linux/ioctl.h usability... yes checking linux/ioctl.h presence... yes checking for linux/ioctl.h... yes checking sys/ioctl.h usability... yes checking sys/ioctl.h presence... yes checking for sys/ioctl.h... yes
... none of which contain or define TIOCSERGETLSR.
As such, USB2Serial adapters won't work. (Am I correct on this? If so, this points to autoconf/automake.)