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mmap more than one buffer in kernel is crashing please help (using dma_mmap_coherent)

score 321 · Answer 1 · 2020-09-30 19:40:21

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mmap more than one buffer in kernel is crashing please help (using dma_mmap_coherent)

321 views Asked by Mathieeo At 30 September 2020 at 19:40

score 141 · Answer 2 · 2023-11-23 18:49:06

Writing to a simple char device module from the user space with echo - Cannot see the write taking place

141 views Asked by user3719581 At 23 November 2023 at 18:49

score 536 · Answer 3 · 2020-12-09 12:42:53

why Variable has incomplete type 'struct file_operations' though importing fs.h?

536 views Asked by oki doki At 09 December 2020 at 12:42

score 622 · Answer 4 · 2017-05-14 13:38:02

Why doesn't device_create return error when a file already exists?

622 views Asked by Mateusz Piotrowski At 14 May 2017 at 13:38

score 21 · Answer 5 · 2018-05-17 21:20:01

Infinite printing on read command of character device (through cat command)

21 views Asked by Santino At 17 May 2018 at 21:20

score 47 · Answer 6 · 2021-06-21 05:38:49

Python reads empty bytearray from character device

47 views Asked by TecDroiD At 21 June 2021 at 05:38

score 2530 · Answer 7 · 2017-02-14 20:41:05

Write to debugfs from Linux Kernel Module

2.5k views Asked by Mugen At 14 February 2017 at 20:41

score 6149 · Answer 8 · 2017-02-14 20:01:30

Getting ENOTTY on ioctl for a Linux Kernel Module

6.1k views Asked by Mugen At 14 February 2017 at 20:01

score 1221 · Answer 9 · 2016-06-20 09:41:44

map reserver memory at boot to user space using remap_pfn_range

1.2k views Asked by Mondher123 At 20 June 2016 at 09:41

score 383 · Answer 10 · 2020-05-26 10:18:00

Why does module failed to load? (/dev/scull0 : no such device or address)

383 views Asked by autistic456 At 26 May 2020 at 10:18

TechQA.

List Question

mmap more than one buffer in kernel is crashing please help (using dma_mmap_coherent)

Writing to a simple char device module from the user space with echo - Cannot see the write taking place

why Variable has incomplete type 'struct file_operations' though importing fs.h?

Why doesn't device_create return error when a file already exists?

Infinite printing on read command of character device (through cat command)

Python reads empty bytearray from character device

Write to debugfs from Linux Kernel Module

Getting ENOTTY on ioctl for a Linux Kernel Module

map reserver memory at boot to user space using remap_pfn_range

Why does module failed to load? (/dev/scull0 : no such device or address)

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