-UCLINUX (AND M68KNOMMU)
-P: Greg Ungerer
-M: gerg@uclinux.org
-W: http://www.uclinux.org/
-L: uclinux-dev@uclinux.org (subscribers-only)
-S: Maintained
-
-UCLINUX FOR NEC V850
-P: Miles Bader
-
-UCLINUX FOR RENESAS H8/300
-P: Yoshinori Sato
-M: ysato@users.sourceforge.jp
-W: http://uclinux-h8.sourceforge.jp/
-S: Supported
-
-UFS FILESYSTEM
-P: Evgeniy Dushistov
-M: dushistov@mail.ru
-L: linux-kernel@vger.kernel.org
-S: Maintained
-
-UltraSPARC (sparc64):
-P: David S. Miller
-M: davem@davemloft.net
-L: sparclinux@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6.git
-S: Maintained
-
-USB DIAMOND RIO500 DRIVER
-P: Cesar Miquel
-M: miquel@df.uba.ar
-L: rio500-users@lists.sourceforge.net
-W: http://rio500.sourceforge.net
-S: Maintained
-