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QuestionUnique Serial Number of an SD (Secure Digital) Memory Card Pin
Gaurav Dudeja India14-Dec-09 0:27
Gaurav Dudeja India14-Dec-09 0:27 
Answercross-post !! Re: Unique Serial Number of an SD (Secure Digital) Memory Card Pin
Garth J Lancaster14-Dec-09 1:56
professionalGarth J Lancaster14-Dec-09 1:56 
QuestionProblem with RAID controller on Dell PowerEdge 4600 [modified] Pin
T210213-Dec-09 19:20
T210213-Dec-09 19:20 
AnswerRe: Problem with RAID controller on Dell PowerEdge 4600 Pin
Garth J Lancaster13-Dec-09 20:25
professionalGarth J Lancaster13-Dec-09 20:25 
GeneralRe: Problem with RAID controller on Dell PowerEdge 4600 [modified] Pin
T210213-Dec-09 20:45
T210213-Dec-09 20:45 
GeneralRe: Problem with RAID controller on Dell PowerEdge 4600 Pin
Jörgen Andersson13-Dec-09 22:04
professionalJörgen Andersson13-Dec-09 22:04 
GeneralRe: Problem with RAID controller on Dell PowerEdge 4600 Pin
Garth J Lancaster14-Dec-09 2:14
professionalGarth J Lancaster14-Dec-09 2:14 
QuestionHow to toggle USB power line Pin
dybs13-Dec-09 14:40
dybs13-Dec-09 14:40 
I have an externally powered USB device, and sometimes I get a "Device attached to the system is not functioning" error. I've been debugging and googling this for a couple days now, and I'm just not getting anywhere anymore.

I've found the unplugging and replugging the USB will usually resolve this. I know toggling the Vcc line on the UBS port will prompt the device to reset its USB state. I can't physically disconnect the device because it could be running as part of an unattended test and may need to be reconnected like this (I'm logging any USB errors I encounter and the conditions so we can debug them later).

Is there a way I can toggle the USB power signal via C# or a Win32 API call?

NOTE: I can pretty consistenly get this to happen in XP, not as often on 7 or one Vista laptop. Other Vista laptops I've tried have never seen this problem, even running the exact same version of the PC code. But since i can get it to happen on multiple computers with different setups, I don't think its a PC issue.

Any help is appreciated.

Dybs

The shout of progress is not "Eureka!" it's "Strange... that's not what i expected". - peterchen

AnswerRe: How to toggle USB power line [modified] Pin
Indivara20-Dec-09 3:38
professionalIndivara20-Dec-09 3:38 
QuestionHow to understand the word "function" in the usb protocol? Pin
bdwzz11-Dec-09 20:03
bdwzz11-Dec-09 20:03 
AnswerRe: How to understand the word "function" in the usb protocol? Pin
Luc Pattyn12-Dec-09 1:58
sitebuilderLuc Pattyn12-Dec-09 1:58 
AnswerRe: How to understand the word "function" in the usb protocol? Pin
Richard MacCutchan12-Dec-09 3:24
mveRichard MacCutchan12-Dec-09 3:24 
JokeRe: Thank you Luc Pattyn and Richard MacCutchan. Pin
bdwzz12-Dec-09 17:56
bdwzz12-Dec-09 17:56 
QuestionPC Temperature Sensors Pin
Tony Richards9-Dec-09 3:12
Tony Richards9-Dec-09 3:12 
AnswerRe: PC Temperature Sensors Pin
Indivara20-Dec-09 4:12
professionalIndivara20-Dec-09 4:12 
GeneralHQOTD [moved] Pin
Brady Kelly7-Dec-09 7:46
Brady Kelly7-Dec-09 7:46 
GeneralRe: HQOTD Pin
Ed.Poore7-Dec-09 8:10
Ed.Poore7-Dec-09 8:10 
Question"Port 'COM 3' does not exist"...Except when it does Pin
dybs5-Dec-09 16:13
dybs5-Dec-09 16:13 
AnswerRe: "Port 'COM 3' does not exist"...Except when it does Pin
Luc Pattyn5-Dec-09 16:29
sitebuilderLuc Pattyn5-Dec-09 16:29 
GeneralRe: "Port 'COM 3' does not exist"...Except when it does Pin
dybs5-Dec-09 17:14
dybs5-Dec-09 17:14 
AnswerRe: "Port 'COM 3' does not exist"...Except when it does Pin
fat_boy14-Jan-10 5:47
fat_boy14-Jan-10 5:47 
Questionwhy RES file contain ICO file path? Pin
HOW WHAT3-Dec-09 17:05
HOW WHAT3-Dec-09 17:05 
AnswerRe: why RES file contain ICO file path? Pin
Richard MacCutchan4-Dec-09 23:54
mveRichard MacCutchan4-Dec-09 23:54 
QuestionPL/M-86 Pin
srbohra26-Nov-09 2:56
srbohra26-Nov-09 2:56 
AnswerRe: PL/M-86 Pin
Richard MacCutchan26-Nov-09 3:19
mveRichard MacCutchan26-Nov-09 3:19 

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