drivers

问题 I am trying to write a code that can get the names of the installed drivers in my Windows computer in C (via winapi)? I am really new to C and I do not know what I can do ? Can you please help me with this situation ? Thank you very much 回答1: You need the setup API. Start with this article: How to enumerate hardware devices by using SetupDi calls 来源： https://stackoverflow.com/questions/10538050/how-to-find-the-names-of-the-installed-drivers-in-my-computer-in-c

问题 I have a character driver called drv1 , and a user application uses ioctl to communicate with it, which will transmit the parameter struct file *filp . Now I want to find out the address of the code segment of drv1 , but I came across some problems. At first, I guess struct file *filp might be useful so I looked at the definition in source code, and find a pointer struct inode *f_inode; /* cached value */ . Then I roughly searched the definition of struct inode (I'm not sure whether it is

问题 Will I be able to connect to this database using php's php_mongo.dll driver? If so, could you please provide some sample code as I was not able to get it in any forum? 回答1: MongoDB requires its own driver. In your case, the PHP driver is located here: http://php.net/manual/en/book.mongo.php The instructions for installing it are on that page. There is also some sample code. 回答2: I think that PDO is only for relational databases. There's no PDO driver for mongodb. 回答3: There is list of

问题 Our device relies on a built-in windows driver (usbser.sys). Do we still need to go through WHQL testing or can we install in such a way that the user won't see a warning about not passing Logo testing? I found http://support.microsoft.com/kb/837637 but it's not clear to me if this will do what I want. Does it matter whether I use DPInst program or have my own program that calls DriverPackagePreinstall? [Edit: changed "Our code" to "Our device" based on comment] 回答1: You don't need to sign

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed last year . I would like to learn how to write device drivers because I think it would be fun. I use a Mac OS X Macbook, but I also have an Ubuntu machine (running on a Mac Min). I am pretty familiar with C and currently am reading this book. I have found some links online such as Mac Dev

问题 I am trying to fetch power data for my devices(cm_power_data_s). I am using the SetupDiGetDeviceRegistryProperty API to do so. While this works fine for some devices, it doesn't work for others. The data returned by SetupDiEnumDeviceInfo is null , and without this, I can't use SetupDiGetDeviceRegistryProperty . I tried manually filling sp_devinfo_data by making a wmi query to get the class GUID , but SetupDiGetDeviceRegistryProperty doesn't return the buffer size with it (same as passing null

问题 I know that OS kernels are made up of drivers, but how does the driver become a part of the os?, does the kernel decompile itself, and then add the driver and recompile itself?, or are the drivers plug-ins for the kernel?, someone told me that for most operating systems, the drivers actually become a part of the kernel, but whenever I compile a c program, it turns into an ordinary executable 回答1: The driver architecture depends entirely on your operating system. For most operating systems

问题 With this topic I would better discuss HR timers and the real precision issue. I studied a lot of documentation about them and I got confident them are the best and most reliable solution to the problem of delaying execution inside linux kernel modules, with the lesser cost for the CPU, and the greater timing precision (e.g. some time critical drivers use them too, like this one https://dev.openwrt.org/browser/trunk/target/linux/generic/files/drivers/pwm/gpio-pwm.c?rev=35328 ). Is it right

问题 Im working with a CD722UN Customer Display for our POS application. it comes with a USB2.0 connection and a installation package containing a driver ect.. now, for my application. how should i do when i want to access this driver? at the moment i'm using the "CD722UN application"s .dll path but that can warry from clients OS ect.. Declare Function opencd722usb Lib "C:\Program\cd7220 USB\cd722dusb.dll" () As Boolean Declare Function writecd722usb Lib "C:\Program\cd7220 USB\cd722dusb.dll"

问题 How do I install com.mysql.jdbc.Driver for Fedora17 O.S using jdk version 1.7 I always get an error of could not find Driver with class name:com.mysql.jdbc.Driver in all my jdbc codes. 回答1: Assuming that you already have MySQL installed, Install the connector driver. : yum install libmysql-java Then make sure that the classpath is set. export CLASSPATH=$CLASSPATH:/usr/share/java/mysql-connector-java.jar If you want to set this for all users, you should modify the /etc/environment instead If