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How to associate physical usb port with usb device number
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I'm using Ubuntu 12.04.
I need to send a command to a device that I have connected on a port of my PC.
I can send the command by finding out what the Bus and Device number are.
For example, lsusb will tell me that I have a device connected on Bus 007 and Device 003
"Bus 007 Device 003: ID 045e:00cb Google Inc."
However, the device number will change if I reboot the device.
"Bus 007 Device 004: ID 045e:00cb Google Inc."
Is there a way to make sure that I can send the commands to that PC USB port? By associating the device number to that phyical USB port? Or is there other fixes and workarounds?
linux ubuntu usb devices
asked May 8 '15 at 19:39
Michael HuangMichael Huang
62
bumped to the homepage by Community♦ 54 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I'm using Ubuntu 12.04.
I need to send a command to a device that I have connected on a port of my PC.
I can send the command by finding out what the Bus and Device number are.
For example, lsusb will tell me that I have a device connected on Bus 007 and Device 003
"Bus 007 Device 003: ID 045e:00cb Google Inc."
However, the device number will change if I reboot the device.
"Bus 007 Device 004: ID 045e:00cb Google Inc."
Is there a way to make sure that I can send the commands to that PC USB port? By associating the device number to that phyical USB port? Or is there other fixes and workarounds?
linux ubuntu usb devices
asked May 8 '15 at 19:39
Michael HuangMichael Huang
62
bumped to the homepage by Community♦ 54 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I'm using Ubuntu 12.04.
I need to send a command to a device that I have connected on a port of my PC.
I can send the command by finding out what the Bus and Device number are.
For example, lsusb will tell me that I have a device connected on Bus 007 and Device 003
"Bus 007 Device 003: ID 045e:00cb Google Inc."
However, the device number will change if I reboot the device.
"Bus 007 Device 004: ID 045e:00cb Google Inc."
Is there a way to make sure that I can send the commands to that PC USB port? By associating the device number to that phyical USB port? Or is there other fixes and workarounds?
linux ubuntu usb devices
asked May 8 '15 at 19:39
Michael HuangMichael Huang
62
I'm using Ubuntu 12.04.
I need to send a command to a device that I have connected on a port of my PC.
I can send the command by finding out what the Bus and Device number are.
For example, lsusb will tell me that I have a device connected on Bus 007 and Device 003
"Bus 007 Device 003: ID 045e:00cb Google Inc."
However, the device number will change if I reboot the device.
"Bus 007 Device 004: ID 045e:00cb Google Inc."
Is there a way to make sure that I can send the commands to that PC USB port? By associating the device number to that phyical USB port? Or is there other fixes and workarounds?
linux ubuntu usb devices
linux ubuntu usb devices
asked May 8 '15 at 19:39
Michael HuangMichael Huang
62
asked May 8 '15 at 19:39
Michael HuangMichael Huang
62
asked May 8 '15 at 19:39
Michael HuangMichael Huang
62
asked May 8 '15 at 19:39
Michael HuangMichael Huang
62
asked May 8 '15 at 19:39
Michael HuangMichael Huang
62
62
bumped to the homepage by Community♦ 54 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 54 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
A workaround is to check the current bus/device configuration for your device as it'll be portable too and I think the usb host controller allocates these numbers dynamically, here's using awk you can get the current bus and device
lsusb | grep "045e:00cb" | tr -d ':'| awk '{print "Bus="$2 " Device="$4}'
You use $2 and $4 in anyway for example : ls -l /dev/bus/usb/$2/$4
answered May 8 '15 at 21:37
MarwareMarware
386210
Is there a way to fix how the usb host controller allocates the numbers?
– Michael Huang
May 13 '15 at 17:28
add a comment |
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1 Answer
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1 Answer
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A workaround is to check the current bus/device configuration for your device as it'll be portable too and I think the usb host controller allocates these numbers dynamically, here's using awk you can get the current bus and device
lsusb | grep "045e:00cb" | tr -d ':'| awk '{print "Bus="$2 " Device="$4}'
You use $2 and $4 in anyway for example : ls -l /dev/bus/usb/$2/$4
answered May 8 '15 at 21:37
MarwareMarware
386210
Is there a way to fix how the usb host controller allocates the numbers?
– Michael Huang
May 13 '15 at 17:28
add a comment |
A workaround is to check the current bus/device configuration for your device as it'll be portable too and I think the usb host controller allocates these numbers dynamically, here's using awk you can get the current bus and device
lsusb | grep "045e:00cb" | tr -d ':'| awk '{print "Bus="$2 " Device="$4}'
You use $2 and $4 in anyway for example : ls -l /dev/bus/usb/$2/$4
answered May 8 '15 at 21:37
MarwareMarware
386210
Is there a way to fix how the usb host controller allocates the numbers?
– Michael Huang
May 13 '15 at 17:28
add a comment |
A workaround is to check the current bus/device configuration for your device as it'll be portable too and I think the usb host controller allocates these numbers dynamically, here's using awk you can get the current bus and device
lsusb | grep "045e:00cb" | tr -d ':'| awk '{print "Bus="$2 " Device="$4}'
You use $2 and $4 in anyway for example : ls -l /dev/bus/usb/$2/$4
answered May 8 '15 at 21:37
MarwareMarware
386210
A workaround is to check the current bus/device configuration for your device as it'll be portable too and I think the usb host controller allocates these numbers dynamically, here's using awk you can get the current bus and device
lsusb | grep "045e:00cb" | tr -d ':'| awk '{print "Bus="$2 " Device="$4}'
You use $2 and $4 in anyway for example : ls -l /dev/bus/usb/$2/$4
answered May 8 '15 at 21:37
MarwareMarware
386210
answered May 8 '15 at 21:37
MarwareMarware
386210
answered May 8 '15 at 21:37
MarwareMarware
386210
answered May 8 '15 at 21:37
MarwareMarware
386210
386210
Is there a way to fix how the usb host controller allocates the numbers?
– Michael Huang
May 13 '15 at 17:28
add a comment |
Is there a way to fix how the usb host controller allocates the numbers?
– Michael Huang
May 13 '15 at 17:28
Is there a way to fix how the usb host controller allocates the numbers?
– Michael Huang
May 13 '15 at 17:28
Is there a way to fix how the usb host controller allocates the numbers?
– Michael Huang
May 13 '15 at 17:28
add a comment |
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