By default the Lego USB tower for communicating with the Lego RCX is placed at /dev/usb/legousbtower0 on my system. You should be able to specify that on the nqc command line with the -S switch. However, that device name is hardcoded to be /dev/usb/lego0 thanks to line 66 of rcxlib/RCX_USBTowerPipe_linux.cpp being commented out. It is possible to work around this bug by symlinking /dev/usb/legousbtower0 over to /dev/usb/lego0, at which point nqc is able to correctly talk to the RCX again, however without digging through the source code of nqc this is difficult to find. Upstream source also has that line commented out. Reproducible: Always Steps to Reproduce: 1. Enable kernel module for Lego USB tower 2. Plug in Lego USB tower 3. Emerge nqc with the usb USE flag 4. Become root or change permission on /dev/usb/legousbtower0 to allow your normal user to use the tower 5. Run "nqc -Susb:/dev/usb/legousbtower0 -pgm 2" Actual Results: The following error message is output: Could not open serial port or USB device Expected Results: No output to console, Lego RCX switches to program #2. emerge --info output: !!! Repository 'x-portage' is missing masters attribute in '/usr/local/portage/metadata/layout.conf' !!! Set 'masters = gentoo' in this file for future compatibility Portage 2.2.7 (default/linux/amd64/13.0, gcc-4.7.3, glibc-2.16.0, 3.10.17-gentoo x86_64) ================================================================= System uname: Linux-3.10.17-gentoo-x86_64-Intel-R-_Core-TM-_i7_CPU_Q_720_@_1.60GHz-with-gentoo-2.2 KiB Mem: 6090056 total, 4807732 free KiB Swap: 4096536 total, 4096536 free Timestamp of tree: Tue, 10 Dec 2013 18:30:01 +0000 ld GNU ld (GNU Binutils) 2.23.1 app-shells/bash: 4.2_p45 dev-java/java-config: 2.1.12-r1 dev-lang/python: 2.7.6, 3.2.5-r3, 3.3.3 dev-util/cmake: 2.8.11.2 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.12.4 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.13.4 sys-devel/binutils: 2.23.1 sys-devel/gcc: 4.7.3-r1 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.9 (virtual/os-headers) sys-libs/glibc: 2.16.0 Repositories: gentoo x-portage ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA AdobeFlash-10.3" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF8" LC_ALL="en_US.UTF8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j8" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" USE="64bit X aac acl acpi alsa amd64 berkdb bluetooth bluray bootchart bzip2 cairo cdda cdr cli consolekit cracklib crypt cxx dbus dhcpcd dri dvd dvdr flac fortran freerdp gdbm gif gsm gtk gzip iconv id3tag ieee1394 jce jpeg kvm lapack libvirtd mmx modules mp3 mp4 mpeg mudflap multilib ncurses nls nptl nsplugin ogg opengl openmp pam pcre png pulseaudio python qemu readline sdl session smp sqlite sse sse2 sse3 sse4 sse4_1 ssl ssse3 svg tcpd theora threads thunar tiff udev unicode v4l v4l2 virt-network vorbis webstart x264 xcomposite xfce xinerama xvid zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev keyboard mouse evdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby18" USERLAND="GNU" VIDEO_CARDS="nouveau" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON
Created attachment 365092 [details, diff] Patch which fixes functionality of the -S command-line switch. This patch fixes the -S command-line switch and allows you to specify a USB device. It also enables the USB library and changes the default device name to match where the device appears in /dev/. Due to my lack of familiarity with how Portage patches are structured, enabling USB may very well overlap with what the "usb" USE flag enables, but applying this patch to the Gentoo-provided tarball and compiling does fix this bug.
Wow, this way upstream has chosen to change this is really ugly :S Do you still need this package? It seems upstream is died since 2007 :/
removed
