irq

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request_threaded_irq() is used in the driver why not request_irq()? What are the differences between two?

I posted this is the thread which discussed about request_threaded_irq but I did not get any reply. So I am posting it freshly.[详细]

2023-04-11 22:43 分类：问答
Is __alloc_pages_slowpath() Reentrant-Safe or Not?

Can a开发者_Python百科 call to __alloc_pages_slowpath() survive a device interrupt that also makes a call to __alloc_pages_slowpath() or does the second call corrupt the first one?[详细]

2023-02-06 06:10 分类：问答
Custom RS485 Protocols

I am writing a simple multi-drop RS485 protocol for serial communications within a distributed system.I am using an addressable model where slave devices are given a window of 20ms to respond.The mast[详细]

2023-01-14 08:36 分类：问答
Keyboard interrupts

I am studying low-level device driver stuff. I am confused between interrupts and IRQ. A sample driver code that hooks keyboard suggests keyboard interrupt is 0x31 but my book on microprocessor says i[详细]

2023-01-08 02:39 分类：问答
how do I block all IRQ's during short (5ms) frame data transfer

I am an old hand with hard开发者_StackOverflow中文版ware and device drivers and used much earlier Linux versions for hardware control. I am recently back in the game of Linux and device control using[详细]

2023-01-06 05:58 分类：问答
How to register a function in a driver code as its ISR

Following the feedback i got from my previous question on Linux Kernel development, I have written a driver (in Linux-kernel v2.6.32) by comparing it with an existing driver and \"borrowing\" heavily[详细]

2022-12-28 10:49 分类：问答
地下城堡3魂之诗启明镇罗伯特实验室如何通关？启明镇罗伯特实验室通关攻略一览与推荐？

如何通关祁鸣镇废弃实验室？罗伯特的实验室是祁鸣镇安静的图书馆的复制品。这个地方有很多朋友不知道怎么进去。这里我们需要来自其他地方，那么我们就来看看祁鸣镇罗伯特实验室通关攻略的具体列表和推荐吧！[详细]

2022-12-17 15:58 分类：问答