atmark@atde5:~$ guvcview -w 0
guvcview 1.5.3
ALSA lib setup.c:565:(add_elem) Cannot obtain info for CTL elem (MIXER,'AC97 2ch->4ch Copy Switch',0,0,0): そのようなファイルやディレクトリはありません
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib setup.c:565:(add_elem) Cannot obtain info for CTL elem (MIXER,'AC97 2ch->4ch Copy Switch',0,0,0): そのようなファイルやディレクトリはありません
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround41
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround50
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround51
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71
ALSA lib setup.c:565:(add_elem) Cannot obtain info for CTL elem (PCM,'IEC958 Playback PCM Stream',0,0,0): そのようなファイルやディレクトリはありません
ALSA lib setup.c:565:(add_elem) Cannot obtain info for CTL elem (PCM,'IEC958 Playback PCM Stream',0,0,0): そのようなファイルやディレクトリはありません
ALSA lib setup.c:565:(add_elem) Cannot obtain info for CTL elem (PCM,'IEC958 Playback PCM Stream',0,0,0): そのようなファイルやディレクトリはありません
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
Cannot connect to server socket err = そのようなファイルやディレクトリはありません
Cannot connect to server request channel
jack server is not running or cannot be started
video device: /dev/video0 
unable to detect video devices on your system (0)
ERROR opening V4L interface: そのようなファイルやディレクトリはありません
Init video returned -1
VIDIOC_REQBUFS - Failed to delete buffers: 無効な引数です (errno 22)
cleaned allocations - 100%
Closing portaudio ...OK
Terminated.
atmark@atde5:~$ cd ..
atmark@atde5:/home$ ls
atmark
atmark@atde5:/home$ cd ..
atmark@atde5:/$ ls
bin    dev   initrd.img  lost+found  opt   run      srv  usr
boot   etc   lib         media       proc  sbin     sys  var
demia  home  lib64       mnt         root  selinux  tmp  vmlinuz
atmark@atde5:/$ cd dev
atmark@atde5:/dev$ ls
MAKEDEV          loop-control        sda       tty2   tty45  ttyUSB0
agpgart          loop0               sda1      tty20  tty46  uinput
atde5            loop1               sda2      tty21  tty47  urandom
autofs           loop2               sda5      tty22  tty48  vcs
block            loop3               serial    tty23  tty49  vcs1
bsg              loop4               sg0       tty24  tty5   vcs2
btrfs-control    loop5               sg1       tty25  tty50  vcs3
bus              loop6               shm       tty26  tty51  vcs4
cdrom            loop7               snapshot  tty27  tty52  vcs5
char             mapper              snd       tty28  tty53  vcs6
console          mcelog              sndstat   tty29  tty54  vcs7
core             mem                 sr0       tty3   tty55  vcsa
cpu              midi                stderr    tty30  tty56  vcsa1
cpu_dma_latency  net                 stdin     tty31  tty57  vcsa2
disk             network_latency     stdout    tty32  tty58  vcsa3
dm-0             network_throughput  tty       tty33  tty59  vcsa4
dm-1             null                tty0      tty34  tty6   vcsa5
dmmidi           oldmem              tty1      tty35  tty60  vcsa6
dri              port                tty10     tty36  tty61  vcsa7
dvd              ppp                 tty11     tty37  tty62  vga_arbiter
fd               psaux               tty12     tty38  tty63  vmci
fd0              ptmx                tty13     tty39  tty7   xconsole
full             pts                 tty14     tty4   tty8   zero
fuse             random              tty15     tty40  tty9
hpet             rfkill              tty16     tty41  ttyS0
input            root                tty17     tty42  ttyS1
kmsg             rtc                 tty18     tty43  ttyS2
log              rtc0                tty19     tty44  ttyS3
atmark@atde5:/dev$