driver

问题 I have a linux driver that registers a char device for every compatible device-node in the Flattened-Device-Tree(FDT). On initialization, the driver allocates a major device number and a range of minor device numbers. when i look at /proc/devices , this major device number is listed. Now, when I define 2 device-nodes, compatible with that driver, in the FDT, the driver's platform-probe-function get's called twice, and 2 char devices are registered under the same major device number, but with

问题 I want to write a usb touchscreen kext for usb touch screen . I have read the Kernel Extension Programming Topics and the I/O Kit Fundamentals etc, My question is, 1 . how to get the input report messages from touch screen ? 2 . how to post the coordinate info to system ? I have no idea, anybody help? 回答1: It depends on the hardware; moreover, this question is quite broad - you'll need to be more specific in your question to get more specific answers. I'll try to provide a broad overview: A

问题 I have this : { "_id" : ObjectId("4fb4fd04b748611ca8da0d48"), "Name" : "Categories", "categories" : [{ "_id" : ObjectId("4fb4fd04b748611ca8da0d46"), "name" : "SubCategory", "sub-categories" : [{ "_id" : ObjectId("4fb4fd04b748611ca8da0d47"), "name" : "SubSubCategory", "standards" : [] }] }] } I would like to add a new SubCategory using the C# driver. Is there an optimal way to do this? 回答1: You can do this using FindOneAndUpdateAsync and positional operator public async Task Add(string

问题 I have an SSIS package (SQL 2008) that I need to connecto to an Oracle DB (11g) with. What do I need to install to connect to oracle? What's the terminology ? All searches I've done talk about Instant Client, but on downloading that I see no exe's? I know installing the server will give me that Oracle Net manager (UI to update TNSNames.ora) but I don't want to install the entire server. That to be is overkill. What's the smallest footprint so that I can create a connection to an oracle DB via

问题 I need to get a uEye camera working with python on Windows in order to take pictures and operate on the live stream. Since uEye cameras are widely spread industrial cameras I would have thought that there is a standard solution to this; however, I could not find any. The solution needs to run under python 2.7 on Windows XP or Windows 7. I would appreciate anyone who has successfully used a uEye camera in python on Windows to share his knowledge on this issue or at least point me in the right

问题 On choosing Data Source under ODBC (64-Bit) on Windows, i get two available options of MySQL Database: MySQL ODBC 5.3 ANSI Driver MySQL ODBC 5.3 Unicode Driver What are the difference between these two? 回答1: Firstly I should say that I don't use MySQL but I do know about ODBC Drivers. In ODBC there are different APIs for unicode and ansi. The ansi APIs end in A and the unicode APIs end in W (e.g., SQLPrepareA and SQLPrepareW). The ansi APIs accept bytes/octets for character strings and hence

问题 On choosing Data Source under ODBC (64-Bit) on Windows, i get two available options of MySQL Database: MySQL ODBC 5.3 ANSI Driver MySQL ODBC 5.3 Unicode Driver What are the difference between these two? 回答1: Firstly I should say that I don't use MySQL but I do know about ODBC Drivers. In ODBC there are different APIs for unicode and ansi. The ansi APIs end in A and the unicode APIs end in W (e.g., SQLPrepareA and SQLPrepareW). The ansi APIs accept bytes/octets for character strings and hence

问题 I'm a beginner with jdbc ... I have a problem running this code : This code uses appache derby and in order to make it work I first started the derby server.. java -jar "C:\Program Files\Sun\JavaDB\lib\derbyrun.jar" server start And then started the program java -classpath derbyclient.jar -jar TestDB.jar I set the class path C:\Program Files\Sun\JavaDB\lib\derby.jar And I'm always getting that exception java.sql.SQLException: No suitable driver found for jdbc:derby://localhost:1527/ BOOKDB

问题 I'm a beginner with jdbc ... I have a problem running this code : This code uses appache derby and in order to make it work I first started the derby server.. java -jar "C:\Program Files\Sun\JavaDB\lib\derbyrun.jar" server start And then started the program java -classpath derbyclient.jar -jar TestDB.jar I set the class path C:\Program Files\Sun\JavaDB\lib\derby.jar And I'm always getting that exception java.sql.SQLException: No suitable driver found for jdbc:derby://localhost:1527/ BOOKDB

问题 My colleague and I have to develop and implement an application on an Android tablet for a company. We started and almost completed the development of the application in question using the Eclipse AVD (we hadn't recieved the tablet yet) and it works perfectly. We received the tablet on which the application must be installed, the model: SynchroDigital INOSOP10-4.0 RES, 10" with ICS, less than 100 €, the really cheap one. Our problem: my PC doesn't recognize the tablet (WIN7, unable to install