device-driver

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Linux: hrtimer_start in interrupt context

Is hrtimer_start safe to call in interrupt cont开发者_如何转开发ext?Looks like it is. Here it\'s called from GPIO IRQ handler.[详细]

2023-01-25 13:47 分类：问答
When transfer data from app to driver via IOCTL, which is better: by string or by common struct?

If the app needs to exchange data with the underlying driver via IOCTL, I know that the app and the driver can define a common struct to hold data and pass it bidirectionally. However, I recently noti[详细]

2023-01-25 07:12 分类：问答
UMDF- lock device in application level

I\'m writing a simple USB driver for our device using UMDF over WinUsb. The driver can be used by multiple application concurrently.[详细]

2023-01-25 04:35 分类：问答
Resetting a device in device manager

I am looking for a programmically API on how to restart开发者_高级运维 any devicethat allows enable/disable in the device manager,[详细]

2023-01-23 02:45 分类：问答
How to implement multiple concurrent application access with WinUsb

We\'re porting our USB device dll\'s to use the generic WinUsb. However, WinUsb doesn\'t support multiple concurrent application accss to the same device (Same VID & PID).[详细]

2023-01-22 22:09 分类：问答
file name for the open character special device file in driver code

In solaris when open call to char special device file is made in user space, the driver\'s open call is called with only two parameters. 1. major and mi开发者_如何学JAVAnor number and 2. flag that con[详细]

2023-01-22 05:08 分类：问答
Windows hardware / device driver report / inventory

I\'m trying to figure out, how to create a hardware inventory / report on Windows 7 including: 开发者_StackOverflow社区[详细]

2023-01-21 06:04 分类：问答
ioctl calls from 32 bit application to 64 bit driver

I have to make a ioctl call to the 64 bit driver code from a 32 bit application. I have send a stru开发者_如何转开发cture as an argument to ioctl call. I see lot of alignment and padding issues becaus[详细]

2023-01-20 19:29 分类：问答
DeviceIOControl() gives Error 50

I\'m very new to communication with Windows Device Drivers. A) I need to communicate with a third-party driver. I see that CreateFile() accept both the device name (such as \\\\\\\\.\\\\DeviceName) a[详细]

2023-01-20 07:44 分类：问答
Debugging the solaris 10 sparc device drivers with gdb

How can we debug Solaris 10 (Sparc) devic开发者_Go百科e drivers like we debug user processes using gdb? By using the mdb & kmdb debuggers:[详细]

2023-01-19 10:12 分类：问答