Top "Linux-device-driver" questions

Device drivers take on a special role in the Linux kernel.

dd command error writing No space left on device

I am new to storage, trying to erase the data in the device '/dev/sdcd' why should I get …

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What is the Linux built-in driver load order?

How can we customize the built-in driver load order (to make some built-in driver module load first, and the dependent …

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How remap_pfn_range remaps kernel memory to user space?

remap_pfn_range function (used in mmap call in driver) can be used to map kernel memory to user space. …

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Hard time in understanding MODULE_DEVICE_TABLE(usb, id_table) usage

I have a hard time understanding the exact usage of MODULE_DEVICE_TABLE(usb, id_table) AFAIK this will generate …

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How to learn the structure of Linux wireless drivers (mac80211)?

There is so many structures in the Linux wireless driver mac80211. Things like struct net_device, struct ieee80211_hw, struct …

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Mapping DMA buffers to userspace

i am writing a device driver on linux-2.6.26. I want to have a dma buffer mapped into userspace for sending …

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How do I determine if a connected USB device is a USB flash drive?

how do you determine what kind of media has been attached to the system? I have Ubuntu, and when I …

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Why softirq is used for highly threaded and high frequency uses?

What makes the softirq so special that we use it for high frequency uses., like in network drivers and block …

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How to implement mouse drivers Linux USB mouse driver?

I need to control mouse pointer of my computer screen using an external device.I just know i have to …

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