- 節電USBハブ[セルフパワー/バスパワー共用モデル] - U2H-SW4Sシリーズ / 節電USBハブ[バスパワー専用モデル] - U2H-SW4Bシリーズ

ThinkPad X201 に U2H-SW4BBK を差した時の usbdevs(8) -v の結果

Controller /dev/usb0:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), Intel(0x8086), rev 1.00
 port 1 addr 2: high speed, self powered, config 1, product 0x0020(0x0020), vendor 0x8087(0x8087), rev 0.00
  port 1 addr 5: high speed, self powered, config 1, USB2.0 Hub(0x8500), Action Star(0x2101), rev 1.06
   port 1 addr 6: high speed, power 20 mA, config 1, USB HID(0x8501), Action Star(0x2101), rev 6.05
   port 2 powered
   port 3 powered
   port 4 powered
   port 5 powered
  port 2 powered
  port 3 powered
  port 4 powered
  port 5 addr 3: high speed, self powered, config 1, product 0x1005(0x1005), vendor 0x17ef(0x17ef), rev 0.01
   port 1 powered
   port 2 addr 4: full speed, power 500 mA, config 1, Logicool Z305(0x0a23), Logicool(0x046d), rev 1.00
   port 3 powered
   port 4 powered
  port 6 powered
 port 2 powered
 port 3 powered
Controller /dev/usb1:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), Intel(0x8086), rev 1.00
 port 1 addr 2: high speed, self powered, config 1, product 0x0020(0x0020), vendor 0x8087(0x8087), rev 0.00
  port 1 powered
  port 2 addr 3: full speed, power 98 mA, config 1, USB Receiver(0xc52b), Logitech(0x046d), rev 12.01
  port 3 powered
  port 4 powered
  port 5 powered
  port 6 powered
  port 7 powered
  port 8 powered
 port 2 powered
 port 3 powered

ついでに dmesg。

uhub5 at uhub3 port 1: Action Star USB2.0 Hub, class 9/0, rev 2.00/1.06, addr 5
uhub5: multiple transaction translators
uhub5: 5 ports with 5 removable, self powered
uhidev4 at uhub5 port 1 configuration 1 interface 0
uhidev4: Action Star USB HID, rev 2.00/6.05, addr 6, iclass 3/1
uhidev4: 3 report ids
uhid9 at uhidev4 reportid 3: input=7, output=7, feature=0

# ukbd(4) を userconf(8) で無効にしているから、本当は uhid(4) じゃなくて ukbd(4) が attach されるかもね。