Ubuntu: temperature monitoring with TEMPer USB sensor / thermometer

lsusb
Bus 005 Device 012: ID 0c45:7401 Microdia

download already compiled version
sudo wget -q http://dl.panticz.de/pcsensor/pcsensor -O /usr/local/bin/pcsensor
sudo chmod a+x /usr/local/bin/pcsensor
sudo watch /usr/local/bin/pcsensor

compile self
# install libs
sudo apt-get install -y libusb-dev libusb-1.0-0 make #libhid-dev

# get source
#wget http://www.isp-sl.com/pcsensor-0.0.1.tgz -O /tmp/pcsensor-0.0.1.tgz
#tar xzf /tmp/pcsensor-0.0.1.tgz -C /tmp
#cd /tmp/pcsensor-0.0.1
mkdir /tmp/pcsensor
wget -q "http://raw.githubusercontent.com/padelt/pcsensor-temper/master/src/pcsensor.c" -O /tmp/pcsensor/pcsensor.c
wget -q "http://raw.githubusercontent.com/padelt/pcsensor-temper/master/src/Makefile" -O /tmp/pcsensor/Makefile

# compile (optional)
cd /tmp/pcsensor/
make

# install
sudo cp ./pcsensor /usr/local/bin/
sudo cp 99-tempsensor.rules /etc/udev/rules.d

# insert
(re)insert TEMPer device

get teperature
pcsensor

create cron script
echo '*/5 * * * * root /usr/local/bin/pcsensor -c >> /var/log/pcsensor.log' | sudo tee /etc/cron.d/pcsensor
#sudo /etc/init.d/cron restart

compile for OpenWrt
export STAGING_DIR=~/develop/OpenWRT/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin
wget -q http://raw.githubusercontent.com/padelt/pcsensor-temper/master/src/pcsen...
~/develop/OpenWRT/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-uclibc-gcc pcsensor.c -o pcsensor

Errror:
pcsensor.c:33:17: fatal error: usb.h: No such file or directory
compilation terminated.

# ?
DEPENDS:=+libusb

# links
http://www.eanderalx.org/blog:linux:hid_temper_pc_sensor
http://relavak.wordpress.com/2009/10/17/temper-temperature-sensor-linux-...
http://forum.ubuntuusers.de/topic/temperatursensor-auslesen/2/#post-4648112
http://www.tolaris.com/2011/05/12/graphing-data-from-a-temper-usb-probe-...