I have some usb-mp3-stick, that returns "?"-characters in its serial. these show up in sys/proc-fs just fine, but lsusb -v just shows one " Reproducible: Always Steps to Reproduce: 1. get a mp3-usb-stick of ebay that returns "?"-characters in its serial 2. compare lsusb and sys/proc-fs output Actual Results: root@notebook timo # cat /proc/scsi/usb-storage/10 Host scsi10: usb-storage Vendor: <USB MF> Product: <USB PRODUCT> Serial Number: ??6?5?2?8?012345 Protocol: Transparent SCSI Transport: Bulk Quirks: root@notebook 2-1 # cd /sys/bus/usb/devices/usb2/2-1/ root@notebook 2-1 # cat idVendor manufacturer idProduct product serial 066f <USB MF> 8000 <USB PRODUCT> ??6?5?2?8?012345 root@notebook timo # lsusb -v -D /proc/bus/usb/002/010 Device: ID 066f:8000 SigmaTel, Inc. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 Interface bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x066f SigmaTel, Inc. idProduct 0x8000 bcdDevice 10.00 iManufacturer 1 <USB MF> iProduct 2 <USB PRODUCT> iSerial 3 " bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 4 bmAttributes 0xc0 Self Powered MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk (Zip) iInterface 5 Internal Device Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Language IDs: (length=4) 0409 English(US) Expected Results: lsusb should have returned the serial like it is listed in sys/proc-fs Portage 2.0.50-r9 (default-x86-1.4, gcc-3.3.3, glibc-2.3.3.20040420-r1, 2.6.7- gentoo-r14) ================================================================= System uname: 2.6.7-gentoo-r14 i686 Intel(R) Pentium(R) M processor 1700MHz Gentoo Base System version 1.4.16 distcc 2.13 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] Autoconf: sys-devel/autoconf-2.59-r4 Automake: sys-devel/automake-1.8.5-r1 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-march=pentium3 -O3 -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3. 2/share/config /usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/ share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ / usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/ share/texmf/xdvi/ /var/bind /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=pentium3 -O3 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache sandbox" GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo ftp:// ftp.uni-erlangen.de/pub/mirrors/gentoo ftp://mirrors.sec.informatik.tu- darmstadt.de/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.de.gentoo.org/gentoo-portage" USE="X aalib acpi acpi4linux alsa apache2 avi berkdb bluetooth cdr crypt cups divx4linux dvd dvdr encode esd ethereal ffmpeg foomaticdb gdbm gif gnome gpm gtk gtk2 imagemagick imap imlib ipv6 irda java jpeg ldap libg++ libwww mad maildir mikmod mmx motif mozilla moznocompose moznoirc moznomail mpeg mpeg4 ncurses nls oggvorbis opengl oss pam pcap pcmcia pda pdflib perl php pic png pnp postgres python qt quicktime readline samba sdl slang spell sse ssl svga tcltk tcpd tetex theora tiff transcode truetype trusted unicode usb x86 xml2 xmms xv zlib"
actually the '?' means that the characters are unprintable (a.k.a. not ASCII) it doesnt mean the things are actually question marks you could try e-mailing the peeps upstream at http://usb.cs.tum.edu/ with your info