User manual

U-Boot for MPL SBC
User Manual
 2003 by MPL AG
24
MEH-10082-002 Rev. D
High-Tech • Made in Switzerland
usb tree shows all the USB devices in a tree structure how the devices are connected:
=> usb tree
Device Tree:
1 Hub (12MBit/s, 0mA)
| UHCI Root Hub
|
+-2 Mass Storage (12MBit/s, 500mA)
| MITSUMI MITSUMI USB FDD
|
+-3 Hub (12MBit/s, 100mA)
| Generic USB Hub
|
+-4 Human Interface (1.5MBit/s, 100mA)
| Chicony KMp
|
+-5 Human Interface (1.5MBit/s, 50mA)
Logitech USB Mouse
=>
usb info [dev] shows detailed information about the specified device. if the device is omitted, all the USB devices are
showed:
=> usb info 4
config for device 4
4: Human Interface, USB Revision 1.0
- Chicony KMp
- Class: (from Interface) Human Interface
- PacketSize: 8 Configurations: 1
- Vendor: 0x04f2 Product 0x0001 Version 1.0
Configuration: 1
- Interfaces: 2 Bus Powered Remote Wakeup 100mA
Interface: 0
- Alternate Settings 0, Endpoints: 1
- Class Human Interface, Subclass: Boot Keyboard
- String: "Keyboard"
- Endpoint 1 In Interrupt MaxPacket 8 Interval 10ms
Interface: 1
- Alternate Settings 0, Endpoints: 1
- Class Human Interface, Subclass: Boot Mouse
- String: "Mouse"
- Endpoint 2 In Interrupt MaxPacket 3 Interval 10ms
=>
usb scan searches for storage devices on the USB, and creates storage devices:
=> usb scan
Scan for storage device:
scanning bus for storage devices...
Device 0: Vendor: MITSUMI Prod.: USB FDD Rev: 1035
Type: Removable Hard Disk
Capacity: 1.4 MB = 0.0 GB (2880 x 512)
=>
Note: Removable media’s must be present for this command.
usb part [dev] lists the partition table of the storage devices
Note: Floppy disk don’t have partition tables. They are handled like described in chapter 3.3.16
fdcboot - boot from floppy device.
Supported USB Devices:
• USB Keyboard
• USB Floppy
Other devices may also work, but they are not tested.