Today I got few USB gadgets:
- Ethernet card (Damicom 9601 based)
- RS232 cable
- multi-port card-reader with USB 2.0 hub integrated (powered)
So during restructure of my USB network I tried to connect all my USB devices to desktop. With two external hubs I got out of ports…
Effect:
12:00 hrw@home:~$ lsusb
Bus 001 Device 055: ID 0a46:9601 Davicom Semiconductor, Inc.
Bus 001 Device 054: ID 058f:6362 Alcor Micro Corp.
Bus 001 Device 053: ID 0fce:d016 Sony Ericsson Mobile Communications AB
Bus 001 Device 036: ID 058f:6254 Alcor Micro Corp.
Bus 001 Device 001: ID 0000:0000
Bus 003 Device 059: ID 0525:a4a2 Netchip Technology, Inc. Linux-USB Ethernet/RNDIS Gadget
Bus 003 Device 058: ID 0424:223a Standard Microsystems Corp. 8-in-1 Card Reader
Bus 003 Device 057: ID 1457:5122
Bus 003 Device 056: ID 0421:0431 Nokia Mobile Phones
Bus 003 Device 055: ID 058f:9254 Alcor Micro Corp. Hub
Bus 003 Device 053: ID 04bf:0319 TDK Corp.
Bus 003 Device 046: ID 0a81:0205 Chesen Electronics Corp. PS/2 Keyboard+Mouse Adapter
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 011: ID 04b8:082f Seiko Epson Corp.
Bus 002 Device 010: ID 046d:c70a Logitech, Inc.
Bus 002 Device 009: ID 046d:c70e Logitech, Inc.
Bus 002 Device 008: ID 046d:0b02 Logitech, Inc.
Bus 002 Device 001: ID 0000:0000
The list contain:
- USB Cup heater with integrated USB 1.1 Hub
- Nokia 770
- Sharp Zaurus C760
- FIC Neo1973
- Davicom Ethernet card
- EPSON Stylus DX3800
- TDK Bluetooth 1.1 dongle
- Logitech Bluetooth 2.0 EDR dongle
- PS/2 -> USB converter with optical mouse connected
- Hama multi-port card reader
- no-name multi-port card reader
- no-name multi-port card reader with integrated USB 2.0 Hub
- Sony Ericsson k750i phone
As result I got:
- 14 usb-storage devices
- 3 serial ports
- 3 network interfaces
- 3 input devices (Logitech Bluetooth need to be switched from HID to HCI)
And everything was working, needed /dev/ entries were created and HAL managed to show me proper tree with all devices. Both hubs were powered during test.
Now I disconnected most of them and left only needed ones.