CENTURY CT-USB1HUB USB troubleshooter

CENTURY CT-USB1HUB

CT-USB1HUB のダウンストリームポートに USB メモリを挿しておいた時の dmesg

uhub3 at uhub2 port 8: SMSC USB 2.0 2-Port Hub, class 9/0, rev 2.00/b.b3, addr 6
uhub3: multiple transaction translators
uhub3: 2 ports with 0 removable, self powered
umass0 at uhub3 port 1 configuration 1 interface 0
umass0: ELECOM MF-BSU3, rev 2.10/1.00, addr 7
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, 1 lun per target
sd0 at scsibus0 target 0 lun 0: <ELECOM, MF-BSU3, PMAP> disk removable
uhidev2 at uhub3 port 2 configuration 1 interface 0
uhidev2: CENTURY Corporation USB1PortHUB, rev 2.00/0.01, addr 8, iclass 3/1
uhid0 at uhidev2: input=8, output=8, feature=40

基本的には uhidev(4) の方で制御するっぽい。ただ uhub(4) の方でもポートの電源制御ができるようだ。