detected by the USB core driver and automatically
initialised, which in the case of most hubs is sig-
nalled by the lighting up of one or more LEDs. Con-
nected or newly plugged-in end devices are also
noticed by the USB core driver, but cannot be used
without a special device driver (usb-storage,
joydev/input/hid etc.).
In the case of many distributed products with
USB support built in at the factory (SuSE, Mandrake
and Caldera), a simple script run at system boot-up
takes care of the integration of device-dependent
driver modules. As a rule, only mouse and keyboard
driver modules are loaded regardless. The modules
for printers, joysticks, etc. added later must be
loaded manually – as long as suitable entries are not
present in /etc/modules.conf. For example, for a
3 1/2” USB disk drive, the entry might look like this:
alias scsi_hostadapter usb-storage
You can now address the disk drive via /dev/sda (as
long as the appropriate SCSI modules have been
compiled, of course). If you also adapt the entry in
[top]
Fig. 2: Linux USB
implementation
is greatly modularised.
[above]
Fig. 3: Connecting new
USB devices causes a
chain reaction.
KNOWHOWUSB
2 · 2000 LINUX MAGAZINE 51
Audio, Communication, Joysticks, Hubs and Mice
Vendor Product Comment
Audio equipment
Philips PCA 646BC Microphone for Webcam
Canopus Canopus DA-Port USB D/A converter
Dallas Semiconductor USB DAC Loudspeaker
Roland MA-150U Loudspeaker
Communication equipment
Vendor Product Comment
3Com OfficeConnect Analogue Modem 56k Business Modem
3Com U.S. Robotics ISDN Pro TA ISDN Terminal Adapter
3Com U.S. Robotics Model 5605 56k Voice Fax-modem
Compaq USB Modem ACM modem
Diamond Diamond Supramaz 56k Usb (2890) Atlas Modem Board (Lucent Technologies )
Diamond Supraexpress 56k USB Modem SUP2780
Digicom Tintoretto USB Modem ISDN USB
Elsa Microlink 56K USB V.90 Modem
Entrega Technologies Hub3U1E 4 -Port-Hub / Ethernet
Linksys USB100TX 10/100 USB-10baseT Ethernet Adapter
Lucent Technologies CNet SinglePoint 56Kbps V.90 Fax Modem Atlas Modem Board
MELCO LUA-TX USB 10/100M LAN Adapter
Metricom Ricochet G2 wireless modem
Netgear/LiteOn ea101c/LNE100TX USB to Ethernet Adapter
OXUS RESEARCH OXUS-B ISDN ISDN Modem
Sirius Technologies NetComm Roadster II 56 USB 56K Flex/V90 Modem
Telecom Device TCD-UFE100 USB 10/100M LAN Adapter
Zoom Telephonics 2986L V90 Fax-modem
Joysticks and Game Pads
Vendor Product Comment
CH Products CH 3-Axis 10-Button+POV USB Joystick F-16 Combat Stick
CH Products CH Pro Pedals USB aircraft pedals
CH Products FlightSim Yoke LE aircraft control lever
Gravis Game Pad Pro USB, Model #4211 Digital Joystick
Logitech WingMan Extreme Digital 3D 6-axis, 7-button USB/Gameport Joystick
Logitech Wingman Game Pad USB HID 2-axis, 11-button game pad
Microsoft Microsoft SideWinder Plug & Play Game Pad Microsoft SideWinder Game Pad (2 axes, 6 buttons)
Microsoft Sidewinder Game Pad Pro USB HID (2 axes, 6 buttons)
Microsoft Sidewinder Precision Pro 6 axes, 9 buttons
Rockfire RM-203u (USB-Nest) USB/Gameport converter
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