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I bought a new computer recently, and it has three USB2.0 ports and a single USB3.0 port. The 2.0 ports work fine, but the 3.0 seems to not read any data, whether from USB 2.0 or 3.0 devices. Things plugged into it receive power, but I can't access any data. Plugging my wireless mouse receiver into it doesn't allow me to operate my mouse.
You probably don't have a driver for the USB 3 controller. But it's hard to say anything more without those specs you are promising. (Output from dmidecode would be a nice start!)
# dmidecode 2.11
SMBIOS 2.6 present.
79 structures occupying 2903 bytes.
Table at 0x000EBA10.
Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: American Megatrends Inc.
Version: G74Sx.203
Release Date: 09/23/2011
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 2560 kB
Characteristics:
PCI is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
ACPI is supported
USB legacy is supported
Smart battery is supported
BIOS boot specification is supported
Targeted content distribution is supported
BIOS Revision: 4.6
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
Manufacturer: ASUSTeK Computer Inc.
Product Name: G74Sx
Version: 1.0
Serial Number: BSN12345678901234567
Asset Tag: ATN12345678901234567
Features:
Board is a hosting board
Board is replaceable
Location In Chassis: MIDDLE
Chassis Handle: 0x0003
Type: Motherboard
Contained Object Handles: 0
Handle 0x0003, DMI type 3, 21 bytes
Chassis Information
Manufacturer: ASUSTeK Computer Inc.
Type: Notebook
Lock: Present
Version: 1.0
Serial Number: CSN12345678901234567
Asset Tag: No Asset Tag
Boot-up State: Safe
Power Supply State: Safe
Thermal State: Safe
Security Status: None
OEM Information: 0x00000000
Height: Unspecified
Number Of Power Cords: 1
Contained Elements: 0
Handle 0x0004, DMI type 4, 42 bytes
Processor Information
Socket Designation: CPU 1
Type: Central Processor
Family: Core i7
Manufacturer: Intel
ID: A7 06 02 00 FF FB EB BF
Signature: Type 0, Family 6, Model 42, Stepping 7
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
DS (Debug store)
ACPI (ACPI supported)
MMX (MMX technology supported)
FXSR (FXSAVE and FXSTOR instructions supported)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
SS (Self-snoop)
HTT (Multi-threading)
TM (Thermal monitor supported)
PBE (Pending break enabled)
Version: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz
Voltage: 0.0 V
External Clock: 100 MHz
Max Speed: 4000 MHz
Current Speed: 2200 MHz
Status: Populated, Enabled
Upgrade: Other
L1 Cache Handle: 0x0005
L2 Cache Handle: 0x0006
L3 Cache Handle: 0x0007
Serial Number: To Be Filled By O.E.M.
Asset Tag: To Be Filled By O.E.M.
Part Number: To Be Filled By O.E.M.
Core Count: 4
Core Enabled: 1
Thread Count: 2
Characteristics:
64-bit capable
Handle 0x0005, DMI type 7, 19 bytes
Cache Information
Socket Designation: L1-Cache
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 32 kB
Maximum Size: 32 kB
Supported SRAM Types:
Other
Installed SRAM Type: Other
Speed: Unknown
Error Correction Type: None
System Type: Unified
Associativity: 8-way Set-associative
Handle 0x0006, DMI type 7, 19 bytes
Cache Information
Socket Designation: L2-Cache
Configuration: Enabled, Not Socketed, Level 2
Operational Mode: Varies With Memory Address
Location: Internal
Installed Size: 2096192 kB
Maximum Size: 2096192 kB
Supported SRAM Types:
Other
Installed SRAM Type: Other
Speed: Unknown
Error Correction Type: None
System Type: Unified
Associativity: <OUT OF SPEC>
Handle 0x0007, DMI type 7, 19 bytes
Cache Information
Socket Designation: L3-Cache
Configuration: Enabled, Not Socketed, Level 3
Operational Mode: Varies With Memory Address
Location: Internal
Installed Size: 6144 kB
Maximum Size: 6144 kB
Supported SRAM Types:
Other
Installed SRAM Type: Other
Speed: Unknown
Error Correction Type: None
System Type: Unified
Associativity: Other
Handle 0x0008, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1A1
Internal Connector Type: None
External Reference Designator: PS2Mouse
External Connector Type: PS/2
Port Type: Mouse Port
Handle 0x0009, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1A1
Internal Connector Type: None
External Reference Designator: Keyboard
External Connector Type: PS/2
Port Type: Keyboard Port
Handle 0x000A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1A2A
Internal Connector Type: None
External Reference Designator: Serial Port
External Connector Type: DB-9 male
Port Type: Serial Port 16550A Compatible
Handle 0x000B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1A2B
Internal Connector Type: None
External Reference Designator: Video
External Connector Type: DB-15 female
Port Type: Video Port
Handle 0x000C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J3A2
Internal Connector Type: None
External Reference Designator: HDMI
External Connector Type: Other
Port Type: Video Port
Handle 0x000D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J3A3
Internal Connector Type: None
External Reference Designator: USB1
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J3A3
Internal Connector Type: None
External Reference Designator: USB2
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J3A3
Internal Connector Type: None
External Reference Designator: USB3
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J3A3
Internal Connector Type: None
External Reference Designator: USB4
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0011, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J4A1
Internal Connector Type: None
External Reference Designator: USB5
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0012, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J4A1
Internal Connector Type: None
External Reference Designator: USB6
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0013, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J4A1
Internal Connector Type: None
External Reference Designator: LAN
External Connector Type: RJ-45
Port Type: Network Port
Handle 0x0014, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J5A1
Internal Connector Type: None
External Reference Designator: Motherboard DP
External Connector Type: Other
Port Type: Other
Handle 0x0015, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J8J1
Internal Connector Type: None
External Reference Designator: SATA Port 0 Direct Connect
External Connector Type: SAS/SATA Plug Receptacle
Port Type: SATA
Handle 0x0016, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J7J1
Internal Connector Type: None
External Reference Designator: eSATA Port 4
External Connector Type: SAS/SATA Plug Receptacle
Port Type: SATA
Handle 0x0017, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J6J1
Internal Connector Type: None
External Reference Designator: eSATA Port 3
External Connector Type: SAS/SATA Plug Receptacle
Port Type: SATA
Handle 0x0018, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1F2
Internal Connector Type: None
External Reference Designator: AC IN
External Connector Type: Other
Port Type: Other
Handle 0x0019, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J5B1 - PCH JTAG
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J9A1 - TPM/PORT 80
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J9E4 - HDA 2X8 Header
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J9E7 - HDA 8Pin Header
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J8F1 - HDA HDMI
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J9E3 - Scan Matrix Keyboard
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J8E1 - SPI Program
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0020, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J9E5 - LPC Hot Docking
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0021, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J9G2 - LPC SIDE BAND
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0022, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J8F2 - LPC Slot
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0023, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J8H3 - PCH XDP
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0024, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J7G1 - SATA Port 2
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA
Handle 0x0025, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J7G2 - SATA Port 1
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA
Handle 0x0026, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J6H1 - SATA Power
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0027, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J5J1 - FP Header
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0028, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J4H1 - ATX Power
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0029, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1J3 - AVMC
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x002A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1H1 - BATT B
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x002B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1H2 - BATT A
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x002C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J2G1 - CPU Fan
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x002D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1D3 - XDP
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x002E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J4V1 - Memory Slot 1
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x002F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J4V2 - Memory Slot 2
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0030, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J4C1 - FAN PWR
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x0031, DMI type 9, 17 bytes
System Slot Information
Designation: J5C1
Type: x16 PCI Express x16
Current Usage: In Use
Length: Long
ID: 0
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:01:03.0
Handle 0x0032, DMI type 9, 17 bytes
System Slot Information
Designation: J6C2
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 1
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:02:1c.0
Handle 0x0033, DMI type 9, 17 bytes
System Slot Information
Designation: J6D2
Type: x1 PCI Express
Current Usage: In Use
Length: Short
ID: 2
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:03:1c.1
Handle 0x0034, DMI type 9, 17 bytes
System Slot Information
Designation: J7C1
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 3
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:ff:1c.2
Handle 0x0035, DMI type 9, 17 bytes
System Slot Information
Designation: J7D2
Type: x1 PCI Express
Current Usage: In Use
Length: Short
ID: 4
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:04:1c.3
Handle 0x0036, DMI type 9, 17 bytes
System Slot Information
Designation: J6C1
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 5
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:ff:1c.4
Handle 0x0037, DMI type 9, 17 bytes
System Slot Information
Designation: J8C2
Type: 32-bit PCI Express x16
Current Usage: In Use
Length: Long
ID: 6
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:05:1c.5
Handle 0x0038, DMI type 9, 17 bytes
System Slot Information
Designation: J6UB
Type: x16 PCI Express x16
Current Usage: Available
Length: Long
ID: 0
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:ff:00.0
Handle 0x0039, DMI type 9, 17 bytes
System Slot Information
Designation: J15BU
Type: x4 PCI Express
Current Usage: Available
Length: Short
ID: 1
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:ff:00.0
Handle 0x003A, DMI type 9, 17 bytes
System Slot Information
Designation: J13BU
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 2
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:00:00.0
Handle 0x003B, DMI type 10, 6 bytes
On Board Device Information
Type: Video
Status: Enabled
Description: To Be Filled By O.E.M.
Handle 0x003C, DMI type 10, 6 bytes
On Board Device Information
Type: Ethernet
Status: Disabled
Description: To Be Filled By O.E.M.
Handle 0x003D, DMI type 10, 6 bytes
On Board Device Information
Type: Sound
Status: Enabled
Description: To Be Filled By O.E.M.
Handle 0x003F, DMI type 12, 5 bytes
System Configuration Options
Option 1: DSN: W -DXW1H8A015570
Option 2: DSN:4A43326A4045
Option 3: DSN:5404A62334A4
Option 4: SMI:00B2CA
Handle 0x0046, DMI type 21, 7 bytes
Built-in Pointing Device
Type: Mouse
Interface: PS/2
Buttons: 3
Handle 0x0047, DMI type 32, 20 bytes
System Boot Information
Status: No errors detected
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: ASUSTeK Computer Inc.
Product Name: G74Sx
Version: 1.0
Serial Number: BAN0AS36923541H
UUID: FAB05C00-F9DF-81E0-3434-5404A62334A4
Wake-up Type: Power Switch
SKU Number:
Family: G
Handle 0x003E, DMI type 11, 5 bytes
OEM Strings
String 1: ZmlGTPppT3FIz
String 2: pJccu7naV0ewy
String 3: p7fjhbdQw6bv7
String 4: 90N56L323G4379VP0Y
String 5:
String 6:
String 7:
String 8:
String 9:
String 10:
Handle 0x0040, DMI type 16, 15 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 32 GB
Error Information Handle: Not Provided
Number Of Devices: 4
Handle 0x0041, DMI type 17, 28 bytes
Memory Device
Array Handle: 0x0040
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: ChannelA-DIMM0
Bank Locator: BANK 0
Type: Unknown
Type Detail: None
Speed: Unknown
Manufacturer: [Empty]
Serial Number: [Empty]
Asset Tag: 9876543210
Part Number: [Empty]
Rank: Unknown
Handle 0x0042, DMI type 17, 28 bytes
Memory Device
Array Handle: 0x0040
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: SODIMM
Set: None
Locator: ChannelA-DIMM1
Bank Locator: BANK 1
Type: DDR3
Type Detail: Synchronous
Speed: 1333 MHz
Manufacturer: Samsung
Serial Number: 775427BC
Asset Tag: 9876543210
Part Number: M471B5273DH0-CH9
Rank: 2
Handle 0x0043, DMI type 20, 19 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x000FFFFFFFF
Range Size: 4 GB
Physical Device Handle: 0x0042
Memory Array Mapped Address Handle: 0x0048
Partition Row Position: Unknown
Interleave Position: 1
Interleaved Data Depth: 2
Handle 0x0044, DMI type 17, 28 bytes
Memory Device
Array Handle: 0x0040
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: ChannelB-DIMM0
Bank Locator: BANK 2
Type: Unknown
Type Detail: None
Speed: Unknown
Manufacturer: [Empty]
Serial Number: [Empty]
Asset Tag: 9876543210
Part Number: [Empty]
Rank: Unknown
Handle 0x0045, DMI type 17, 28 bytes
Memory Device
Array Handle: 0x0040
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: SODIMM
Set: None
Locator: ChannelB-DIMM1
Bank Locator: BANK 3
Type: DDR3
Type Detail: Synchronous
Speed: 1333 MHz
Manufacturer: Samsung
Serial Number: 775427A8
Asset Tag: 9876543210
Part Number: M471B5273DH0-CH9
Rank: 2
Handle 0x0049, DMI type 20, 19 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x000FFFFFFFF
Range Size: 4 GB
Physical Device Handle: 0x0045
Memory Array Mapped Address Handle: 0x0048
Partition Row Position: Unknown
Interleave Position: 2
Interleaved Data Depth: 2
Handle 0x0048, DMI type 19, 15 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x000FFFFFFFF
Range Size: 4 GB
Physical Array Handle: 0x0040
Partition Width: 4
Handle 0x004A, DMI type 129, 8 bytes
OEM-specific Type
Header and Data:
81 08 4A 00 01 01 02 01
Strings:
Intel_ASF
Intel_ASF_001
Handle 0x004B, DMI type 130, 20 bytes
OEM-specific Type
Header and Data:
82 14 4B 00 24 41 4D 54 00 00 00 00 00 A5 2F 02
00 00 00 00
Handle 0x004C, DMI type 131, 64 bytes
OEM-specific Type
Header and Data:
83 40 4C 00 31 00 00 00 07 00 00 00 00 00 33 00
F8 00 49 1C FF FF FF FF 01 20 00 00 00 00 07 00
B3 04 0A 00 00 00 00 00 C8 00 FF FF 00 00 00 00
00 00 00 00 70 01 00 00 76 50 72 6F 00 00 00 00
Handle 0x004D, DMI type 13, 22 bytes
BIOS Language Information
Language Description Format: Abbreviated
Installable Languages: 1
eng
Currently Installed Language: eng
Handle 0x004E, DMI type 127, 4 bytes
End Of Table
I thought that it might be the driver too, but from what I read online, USB 3.0 support has come built-in with the kernel since 2.6.31, while I'm on 2.6.38.7. Unless I'm misunderstanding this somehow?
and the relevant section of /var/log/messages (or your applicable file) when you plug a USB-2.0 and also a USB-3.0 device into the USB-3.0 slot.
Such as:
Code:
gentoo-asus ~ # lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
or
Code:
[lxde@slackware-x86 ~]$ su -
Password:
root@slackware-x86:~# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0781:5561 SanDisk Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 8087:07d6 Intel Corp.
Bus 001 Device 004: ID 13d3:5134 IMC Networks
Bus 001 Device 005: ID 0bda:0139 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 004: ID 050d:0234 Belkin Components F5U234 USB 2.0 4-Port Hub
Bus 002 Device 005: ID 1058:1021 Western Digital Technologies, Inc. Elements 2TB
Bus 002 Device 006: ID 1b1c:1a90
with usb 3.0 external hdd plugged in:
Code:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 8087:07d6 Intel Corp.
Bus 001 Device 004: ID 13d3:5134 IMC Networks
Bus 001 Device 005: ID 0bda:0139 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 004: ID 050d:0234 Belkin Components F5U234 USB 2.0 4-Port Hub
Bus 002 Device 005: ID 1058:1021 Western Digital Technologies, Inc. Elements 2TB
Bus 002 Device 006: ID 1b1c:1a90
with usb 2.0 external hdd plugged in:
Code:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 8087:07d6 Intel Corp.
Bus 001 Device 004: ID 13d3:5134 IMC Networks
Bus 001 Device 005: ID 0bda:0139 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 004: ID 050d:0234 Belkin Components F5U234 USB 2.0 4-Port Hub
Bus 002 Device 005: ID 1058:1021 Western Digital Technologies, Inc. Elements 2TB
Bus 002 Device 006: ID 1b1c:1a90
The output is identical in all three instances.
This is with my 3.0 hdd plugged into a 2.0 slot:
Code:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 8087:07d6 Intel Corp.
Bus 001 Device 004: ID 13d3:5134 IMC Networks
Bus 001 Device 005: ID 0bda:0139 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 004: ID 050d:0234 Belkin Components F5U234 USB 2.0 4-Port Hub
Bus 002 Device 005: ID 1058:1021 Western Digital Technologies, Inc. Elements 2TB
Bus 002 Device 006: ID 1b1c:1a90
Bus 002 Device 007: ID 1058:0740 Western Digital Technologies, Inc.
A Message Signaled Interrupt is a write from the device to a special
address which causes an interrupt to be received by the CPU.
The MSI capability was first specified in PCI 2.2 and was later enhanced
in PCI 3.0 to allow each interrupt to be masked individually. The MSI-X
capability was also introduced with PCI 3.0. It supports more interrupts
per device than MSI and allows interrupts to be independently configured.
Devices may support both MSI and MSI-X, but only one can be enabled at
a time.
A Message Signaled Interrupt is a write from the device to a special
address which causes an interrupt to be received by the CPU.
The MSI capability was first specified in PCI 2.2 and was later enhanced
in PCI 3.0 to allow each interrupt to be masked individually. The MSI-X
capability was also introduced with PCI 3.0. It supports more interrupts
per device than MSI and allows interrupts to be independently configured.
Devices may support both MSI and MSI-X, but only one can be enabled at
a time.
I don't really understand the significance of an interrupt. Is this going to have any other noticeable effect, whether good or bad?
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