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  • What does a linux device need to be seen by Hal?

    - by Jaime Soriano
    I'm trying to learn about device drivers on Linux Kernel, for that I've created three modules with: A bus type A device driver A fake device that does nothing now, only is registered Everything works fine, I can load the bus, the driver and the module that creates the device. Everything appears on sysfs, including the link between the device and the device driver that indicates that they are binded. And when the driver and device are loaded, I can see using udevadm monitor that also some events are provoked: KERNEL[1275564332.144997] add /module/bustest_driver (module) KERNEL[1275564332.145289] add /bus/bustest/drivers/bustest_example (drivers) UDEV [1275564332.157428] add /module/bustest_driver (module) UDEV [1275564332.157483] add /bus/bustest/drivers/bustest_example (drivers) KERNEL[1275564337.656650] add /module/bustest_device (module) KERNEL[1275564337.656817] add /devices/bustest_device (bustest) UDEV [1275564337.658294] add /module/bustest_device (module) UDEV [1275564337.664707] add /devices/bustest_device (bustest) But after everything, the device doesn't appear on hal. What else need a device to be seen by hal?

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  • How to properly translate the "var" result of a lambda expression to a concrete type?

    - by CrimsonX
    So I'm trying to learn more about lambda expressions. I read this question on stackoverflow, concurred with the chosen answer, and have attempted to implement the algorithm using a console app in C# using a simple LINQ expression. My question is: how do I translate the "var result" of the lambda expression into a usable object that I can then print the result? I would also appreciate an in-depth explanation of what is happening when I declare the outer => outer.Value.Frequency (I've read numerous explanations of lambda expressions but additional clarification would help) C# //Input : {5, 13, 6, 5, 13, 7, 8, 6, 5} //Output : {5, 5, 5, 13, 13, 6, 6, 7, 8} //The question is to arrange the numbers in the array in decreasing order of their frequency, preserving the order of their occurrence. //If there is a tie, like in this example between 13 and 6, then the number occurring first in the input array would come first in the output array. List<int> input = new List<int>(); input.Add(5); input.Add(13); input.Add(6); input.Add(5); input.Add(13); input.Add(7); input.Add(8); input.Add(6); input.Add(5); Dictionary<int, FrequencyAndValue> dictionary = new Dictionary<int, FrequencyAndValue>(); foreach (int number in input) { if (!dictionary.ContainsKey(number)) { dictionary.Add(number, new FrequencyAndValue(1, number) ); } else { dictionary[number].Frequency++; } } var result = dictionary.OrderByDescending(outer => outer.Value.Frequency); // How to translate the result into something I can print??

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  • Within a Visual Studio 2008 Add-In, how can I tell which interfaces a class' property implements?

    - by Tim Stewart
    In a Visual Studio Add-In, I'm enumerating over the members of a class in the current source file. When I encounter a property (e.g. CodeElement.Kind == vsCMElement.vsCMElementProperty) I cast that CodeElement to a CodeProperty and I can see the property's name and type. What I'm having a problem with is getting a list of the property's implemented interfaces. I'm wondering if this is because the implemented interfaces might be in assemblies that Visual Studio doesn't "know" about. Is there a way to get the list of interfaces that a property implements? Thanks.

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  • How do i add a new object with suds?

    - by Jerome
    I'm trying to use suds but have so far been unsuccessful at figuring this out. Hopefully it's something simple that i'm missing. Any help would be highly appreciated. This is supposed to be the raw soap message that i need to achieve: <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:api="http://api.service.apimember.soapservice.com/"> <soapenv:Header/> <soapenv:Body> <api:insertOrUpdateMemberByObj> <token>t67GFCygjhkjyUy8y9hkjhlkjhuii</token> <member> <dynContent> <entry> <key>FIRSTNAME</key> <value>hhhhbbbbb</value> </entry> </dynContent> <email>[email protected]</email> </member> </api:insertOrUpdateMemberByObj> </soapenv:Body> </soapenv:Envelope> So i use suds to create the member object: member = client.factory.create('member') produces: (apiMember){ attributes = (attributes){ entry[] = <empty> } } How exactly do i append an 'entry'? I try this: member.attributes.entry.append({'key':'FIRSTNAME','value':'test'}) and that produces this: (apiMember){ attributes = (attributes){ entry[] = { value = "test" key = "FIRSTNAME" }, } } However, what i actually need is: (apiMember){ attributes = (attributes){ entry[] = (entry) { value = "test" key = "FIRSTNAME" }, } } How do i achieve this?

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  • I would like to have a publicly accessable linux box hosted elsewhere. Who provides this service?

    - by Eric Wilson
    I would like to have a general purpose linux server available and publicly accessible. I understand that there are no lack of web-hosting companies, but I might want more control over the machine than is typical. I would want the ability to install software, such as an SVN server, and I would like to be able to expose various port numbers, as I may have a variety of extremely low traffic sites that I would want to have available. Obviously, one option is to host such a machine in my home. Is that my only option? Or is what I describe out there, possible as a virtual machine on a larger server?

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  • Add xcode-select to PATH vs. Install Xcode Command Line Tools?

    - by MattDiPasquale
    Now with Xcode 4.5, is it OK to just add the following line to my ~/.bash_profile rather than installing the Xcode Command Line Tools? export PATH="$PATH:`xcode-select -print-path`/usr/bin:`xcode-select -print-path`/Toolchains/XcodeDefault.xctoolchain/usr/bin" Note: Xcode says the following about Command Line Tools: Before installing, note that from within Terminal you can use the XCRUN tool to launch compilers and other tools embedded within the Xcode application. Use the XCODE-SELECT tool to define which version of Xcode is active. Type "man xcrun" from within Terminal to find out more.

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  • What function does .NET NPV() use? Doesn't match manual calculations

    - by Matthew PK
    I am using the NPV() function in VB.NET to get NPV for a set of cash flows. However, the result of NPV() is not consistent with my results performing the calculation manually (nor the Investopedia NPV calc... which matches my manual results) My correct manual results and the NPV() results are close, within 5%.. but not the same... Manually, using the NPV formula: NPV = C0 + C1/(1+r)^1 + C2/(1+r)^2 + C3/(1+r)^3 + .... + Cn/(1+r)^n The manual result is stored in RunningTotal With rate r = 0.04 and period n = 10 Here is my relevant code: EDIT: Do I have OBOB somewhere? YearCashOutFlow = CDbl(TxtAnnualCashOut.Text) YearCashInFlow = CDbl(TxtTotalCostSave.Text) YearCount = 1 PAmount = -1 * (CDbl(TxtPartsCost.Text) + CDbl(TxtInstallCost.Text)) RunningTotal = PAmount YearNPValue = PAmount AnnualRateIncrease = CDbl(TxtUtilRateInc.Text) While AnnualRateIncrease > 1 AnnualRateIncrease = AnnualRateIncrease / 100 End While AnnualRateIncrease = 1 + AnnualRateIncrease ' ZERO YEAR ENTRIES ListBoxNPV.Items.Add(Format(PAmount, "currency")) ListBoxCostSave.Items.Add("$0.00") ListBoxIRR.Items.Add("-100") ListBoxNPVCum.Items.Add(Format(PAmount, "currency")) CashFlows(0) = PAmount '''' Do While YearCount <= CInt(TxtLifeOfProject.Text) ReDim Preserve CashFlows(YearCount) CashFlows(YearCount) = Math.Round(YearCashInFlow - YearCashOutFlow, 2) If CashFlows(YearCount) > 0 Then OnePos = True YearNPValue = CashFlows(YearCount) / (1 + DiscountRate) ^ YearCount RunningTotal = RunningTotal + YearNPValue ListBoxNPVCum.Items.Add(Format(Math.Round(RunningTotal, 2), "currency")) ListBoxCostSave.Items.Add(Format(YearCashInFlow, "currency")) If OnePos Then ListBoxIRR.Items.Add((IRR(CashFlows, 0.1)).ToString) ListBoxNPV.Items.Add(Format(NPV(DiscountRate, CashFlows), "currency")) Else ListBoxIRR.Items.Add("-100") ListBoxNPV.Items.Add(Format(RunningTotal, "currency")) End If YearCount = YearCount + 1 YearCashInFlow = AnnualRateIncrease * YearCashInFlow Loop

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  • How to add a local image in my firefox entension?

    - by jin
    I am developing a firefox extension and create a table and in it add a image , and I create a image with : var _img = document.createElementNS("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "xul:image"); and then I found I couldn't set its attribute "src" with a local image just like use its Url: chrome:\...., so I have to locate it in a web url:http:\ , but a problem will arise, when the http:\ couldn't be visted, How to do? if can I set the attribute of a image with a local url? Thank you very much!

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  • jquery add row on click only if it's empty?

    - by KittyYoung
    The code below works, insomuch that if I click in an input field, it'll add another row. I'm trying to figure out though, how to do that only if the input field is empty? $("#tableSearchData > tbody > tr > td > input").bind('focus', function(){ var row = $(this).closest("tr").get(0); if( row.className.indexOf("clicked")==-1 ) { var rowCopy=$(row).clone(true); $(row).closest("tbody").append(rowCopy); row.className+=" clicked"; } });

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  • Quick and dirty user management service for Linux VMs?

    - by quack quixote
    Background I have a home server running Debian, and a workstation that runs various VirtualBox VMs (mostly Linuxen but some Windows). At the moment, I'm creating my main user account anew for every new Linux VM. I'd like to make use of a centralized user-management scheme instead, so I can just configure the new VMs for the directory technology and let them handle user lookups automatically. The last time I worked with anything like this, NIS+ was still in fashion. I have a vague notion of what LDAP and Active Directory are, but no knowledge of how to configure them for what I want. Question What user-management/network-directory technology should I use for providing user accounts to my network? The server must run on Debian Lenny. Client configuration should be simple point-at-server-and-go. I need an example configuration for one sample user account. (nice-to-have) I may want to mount the user's home directory from the server. (nice-to-have) The same configuration works with Windows clients.

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  • How to detect how many time the users have click the button...

    - by Jerry
    Hello guys. Just want to know if there is a way to detect how many times a user has clicked a button by using Jquery. My main application has a button that can add input fields depend on the users. He/She can adds as many input fields as they need. When they submit the form, The add page will add the data to my database. My current idea is to create a hidden input field and set the value to zero. Every time a user clicks the button, jquery would update the attribute of the hidden input field value. Then the "add page" can detect the loop time. See the example below. I just want to know if there are better practices to do this. Thanks for the helps. main page <form method='post' action='add.php'> //omit <input type="hidden" id="add" name="add" value="0"/> <input type="button" id="addMatch" value="Add a match"/> //omit </form> jquery $(document).ready(function(){ var a =0; $("#addMatch").live('click', function(){ $('#table').append("<input name='match"+a+"Name' />") //the input field will append //as many as the user wants. a++; $('#add').attr('name', 'a'); //pass the a value to hidden input field return false; }); Add Page $a=$_POST['a']; // for($k=0;$k<$a;$k++){ //get all matchName input field $matchName=$_POST['match'.$k.'Name']; //insert the match $updateQuery=mysql_query("INSERT INTO game (team) values('$matchName')",$connection); if(!$updateQuery){ DIE('mysql Error:'+mysql_error()); }

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  • What useful things can one add to one's .bashrc?

    - by gyaresu
    Is there anything that you can't live without and will make my life SO much easier? Here are some that I use ('diskspace' & 'folders' are particularly handy). # some more ls aliases alias ll='ls -alh' alias la='ls -A' alias l='ls -CFlh' alias woo='fortune' alias lsd="ls -alF | grep /$" # This is GOLD for finding out what is taking so much space on your drives! alias diskspace="du -S | sort -n -r |more" # Command line mplayer movie watching for the win. alias mp="mplayer -fs" # Show me the size (sorted) of only the folders in this directory alias folders="find . -maxdepth 1 -type d -print | xargs du -sk | sort -rn" # This will keep you sane when you're about to smash the keyboard again. alias frak="fortune" # This is where you put your hand rolled scripts (remember to chmod them) PATH="$HOME/bin:$PATH"

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  • Bash Scripting: I want to open a set of .php files, and add line before html tag

    - by Bashn00b
    Hi guys, I have a set of .php files in a folder, I want to add text just before these lines: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" > What i want is to insert just before these lines in the html file. So just want to prepend that file before each docType declaration. However the DOCTYPE declaration is never on line 1, as there is loads of php lines before. I have this current script (where FE is the folder containing all the scripts i want to edit): for file in ${fe}*; do echo "$file" done Thanks,

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  • How can I add a favicon to a bookmarklet in Google Chrome?

    - by pattulus
    I'm on OS X and I want my bookmarklets to have favicons. I already found two articles but they didn't help much: http://www.tapper-ware.net/blog/?p=97#comment-2076 It's a great article but as I understand it this doesn't seem to work for Chrome :( http://www.tech-recipes.com/rx/3032/google_chrome_how_to_change_icons_on_the_bookmarks_bar/ The problem with this tipp is - if I'm wrong, then please correct me - that after I cleaned the history, the cache, etc. the whole thing will be gone again. If there is a chance to modify the bookmarklets by hosting them myself I'd instantly do it, but I found no solution so far.

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  • How to manage unprivileged administration of system services using Debian?

    - by ypnos
    At our lab, we have several services handled by different phd students (like myself). Fluctuation is high and people do the job next to their research duties. Until now, services were running on different machines, with different OS setups that can result in administration hell quickly. We want to consolidate our service setup. Our main idea is that the guys responsible for the services should not meddle with the underlying system anymore. Apart from core systems like NFS and kerberos, a typical service is able to run as non-root already. I'm talking about apache, mysql, subversion, mail with openxchange, and so on. Redirecting privileged ports is also no issue (source). What is left is the configuration of the service and its payload. One scenario we envisioned is that every service has its own user and home directory, accessable by the corresponding admins. Backup and fallback of the service is easy, as everything needed for the service to run is found in one place. Are there established ways to create such a setup? Does a mostly unique method exist to make services find their files (other than in system directories) while still using the corresponding debian packages? Are there any catches with our idea that we may have overlooked? Would you maybe claim that virtualization is the answer to our problem? (In our POV, it wouldn't help us keeping system setup strictly separated from service setup.) Thank you for any advice!

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  • Is dependency injection only for service type objects and singletons? (and NOT for gui?)

    - by sensui
    I'm currently experimenting with the Google's guice inversion of control container. I previously had singletons for just about any service (database, active directory) my application used. Now I refactored the code: all the dependencies are given as parameters to constructors. So far, so good. Now the hardest part is with the graphical user interface. I face this problem: I have a table (JTable) of products wrapped in an ProductFrame. I give the dependencies as parameters (EditProductDialog). @Inject public ProductFrame(EditProductDialog editProductDialog) { // ... } // ... @Inject public EditProductDialog(DBProductController productController, Product product) { // ... } The problem is that guice can't know what Product I have selected in the table, so it can't know what to inject in the EditProductDialog. Dependency Injection is pretty viral (if I modify one class to use dependency injection I also need to modify all the other classes it interacts with) so my question is should I directly instantiate EditProductDialog? But then I would have to pass manually the DBProductController to the EditProductDialog and I will also need to pass it to the ProductFrame and all this boils down to not using dependency injection at all. Or is my design flawed and because of that I can't really adapt the project to dependecy injection? Give me some examples of how you used dependency injection with the graphical user interface. All the examples found on the Internet are really simple examples where you use some services (mostly databases) with dependency injection.

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  • Delay init from starting a service for a period of time?

    - by Matthew
    I am trying to get a rudimentary NFS server up and running. Right now the server is configured as an NFS server due to a workaround for a vendor issue not supporting direct attached clustered storage, which we are trying to get them to resolve. The vendor software is Splunk. The splunk feature we are using requires files be located on shared storage (which for us is /mnt/nfs until they support a real clustered filesystem). Currently the server has a GFS2 filesystem mounted at bootup (it is the only server with the filesystem actively mounted so there should be no problems with locking). We went with GFS2 so switching over to a clustered filesystem is easy should the vendor begin supporting it. NFS is configured to mount that filesystem at /mnt/nfs, which the splunk installation than sees. Splunk is configured to find it's configuration files in /mnt/nfs. However, I am running into a problem where the splunk daemon starts before nfs is finished loading, and because it sees nothing at /mnt/nfs it starts creating files there, and then when the files disappear (nfs finishes mounting the share), splunk craps out. Splunk is set to run at runlevel 3, S90. NFS is set at runlevels 2-5, S60. Is there any way to delay the startup of the splunk process further?

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  • How can I add styles to dynamically added table cells?

    - by Doc Hoffiday
    In my program I have a table that, when loaded, has jQuery add some styles/classes to the table cells and table headers. Everything works fine until rows are added via functionality on the rest of the page. Instead of adding the classes to the table cell during addition, is it possible to "listen" or fire some event that checks to see if child elements were added to the table. Essentially, I want something functionally equivalent to this: $("#table td").live("ready", function(){ // do something }); but the live/ready won't work on a table cell... Any ideas?

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  • Getting Excel add ins to modify array formula parameters; or perform 'ctrl-shift-enter'

    - by Toby Wilson
    I am trying to make a C# Excel add in change the parameters of an array formula in-place; i.e. do the same as a user modifying an array formula and hitting ctrl-shift-enter. Setting the activeCell.FormulaArray property does not achieve this; it throws a 'You cannot change part of an array' error. Does anyone know how I can achieve this? A solution that also works in VBA would be brilliant. I've tried creating some logic that 'walks' to the perimeter of the array formula and deletes it first, but it doesn't account for adjacent array formulas and I believe this is unnecessarily drastic.

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  • Rar.exe CLI - add files from directory without directory structure?

    - by Vercas
    I need to grab every file in a folder and shove it into a RAR archive. This is my current method: "C:\Program Files\WinRAR\Rar.exe" a -r -md2m -s -m5 -ma4 -t ..\Releases\vCommands.rar bin\ ... Where bin is my folder. I tried this too, even though it is for another program, and the results are the same. To be clear, here's a picture: To the top-left, in the .rar file, there is the bin directory which contains all the files. To the bottom-right, in the .7z file, all those files are in the archive root. What I need is shoving all those files in the .rar archive root, instead of a folder, without having to execute my batch file inside that bin folder.

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  • How to add a specific class to an input which has generated a form error?

    - by Kamil Mroczek
    I want to add a specific class to an input if an error is genereted by the input. For example, if input is empty and has required validator it shouls look like this: <dd id="login-element"> <input type="text" name="login" id="login" value="" class="input-text error" /> <ul class="errors"> <li>Value is required and can't be empty</li> </ul> </dd> class="input-text error" Please tell me how to do that.

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