ioshift is not working in lirc 0.9.0-0ubuntu1

[kettle2007]

user@host:~$ dmesg | grep ttyS4
[ 1.221523] ttyS4: detected caps 00000700 should be 00000500
[ 1.221527] 0000:03:00.0: ttyS4 at MMIO 0xf7c01000 (irq = 17) is a 16C950/954
user@host:~$ cat /etc/modprobe.d/lirc-serial.conf
#COM4 equivalent, /dev/ttyS4
options lirc_serial irq=17 iommap=1 io=0x1000 ioshift=0xf7c0 debug=1 share_irq=1
user@host:~$ sudo setserial /dev/ttyS4 uart none
user@host:~$ sudo modprobe lirc_serial
user@host:~$ lsmod | grep lirc
lirc_serial 18619 0
lirc_dev 18700 1 lirc_serial
user@host:~$ dmesg | grep lirc
[ 150.631401] lirc_dev: IR Remote Control driver registered, major 249
[ 150.662863] lirc_serial: module is from the staging directory, the quality is unknown, you have been warned.
[ 150.663066] lirc_serial: port 1000 already in use
[ 150.663068] lirc_serial: use 'setserial /dev/ttySX uart none'
[ 150.663069] lirc_serial: or compile the serial port driver as module and
[ 150.663069] lirc_serial: make sure this module is loaded first
[ 150.663076] lirc_serial: probe of lirc_serial.0 failed with error -16
[ 150.663121] platform lirc_serial.0: lirc_dev: driver lirc_serial registered at minor = 0
user@host:~$

[kettle2007 (avedrov)]

user@host:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise
user@host:~$ uname -r
3.2.0-31-generic-pae

user@host:~$ dpkg -s lirc
Package: lirc
Status: install ok installed
Priority: extra
Section: utils
Installed-Size: 2840
Maintainer: Ubuntu Core Developers <email address hidden>
Architecture: i386
Version: 0.9.0-0ubuntu1
Replaces: lirc-modules-source
Depends: libasound2 (>> 1.0.24.1), libc6 (>= 2.7), libftdi1 (>= 0.18), liblircclient0 (>= 0.6.4), libportaudio2 (>= 19+svn20101113), libusb-0.1-4 (>= 2:0.1.12), debconf (>= 0.5) | debconf-2.0, lsb-base, setserial
Recommends: udev
Suggests: lirc-x
Conflicts: lirc-modules-source, makedev (<< 2.3.1-88)
Conffiles:
 /etc/lirc/lircmd.conf e5b59f3ea89c5c1fd838e506cec6cba0
 /etc/lirc/hardware.conf f1654465c5d32106e69a6b191105923c
 /etc/lirc/lircd.conf e5b59f3ea89c5c1fd838e506cec6cba0
 /etc/init.d/lirc 2cb2178672f2396d9203581739751c82
 /etc/logcheck/ignore.d.paranoid/lirc 7c3aec5eaaac2a1ce391e0ad5f892d82
 /etc/logcheck/ignore.d.server/lirc 7c3aec5eaaac2a1ce391e0ad5f892d82
 /etc/logcheck/ignore.d.workstation/lirc 7c3aec5eaaac2a1ce391e0ad5f892d82
Description: infra-red remote control support
 LIRC stands for 'Linux Infra-red Remote Control'.
 .
 This package provides the daemons and some utilities to support infra-red
 remote controls under Linux.
Homepage: http://lirc.org
Original-Maintainer: lirc Maintainer Team <email address hidden>
user@host:~$

[Alec Leamas (leamas-alec)]

As visible in description, this is a problem in the lirc_serial kernel module which means that this bug should be reassigned to the kernel (despite it's name, the lirc_serial module is actually part of the kernel.)