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Category Archives: Uncategorized

read_proc is being involked multiple times…why..??

Sir, if there is nothing to return or 0 to return from a read_proc function, then it is being involked for one time only. But if we return some value like 30 or 40 or No_of_bytes written, then read_proc is … Continue reading →

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Able to make my own proc entry.

Implemented create_proc_entry AND create_proc_read_entry successfully. read_proc successfully mapped and working on opening /proc/my_file… Also writing into the file. And reading the contents.

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long time problem solved

devices were not unregisterd but today its done

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drivers

implemented multiplequantums reading writing. implemented sculltrim. actually i want to do it again.so please switch me to e2 batch

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prob in threads implementation

not understanding thread implementation ………….

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assignments

1)completed read and write for multiple quantums 2)trimming also done 3)lseek for linear quantum

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assignments related to char driver..

reading/writing for mutiple quantum , reading/writing for different application , trimming , mutiple threaded application without using semaphore, lssek for linear quantum, thread semaphores complete

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character drivers

reading/writing for mutiple quantum , reading/writing for different application , trimming , mutiple threaded application without using semaphore, lssek for linear quantum had done

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Assignment for character driver

Implemented multiple read and write . Implemented multiple read and write with 2 different application using semaphores. Implemented scull_trim . Implemented multiple read and write using threads.

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character driver assignments

1.implemented multiple quantam’s read and write 2.implemented read and write with 2 different application using semaphore 3.implemented read and write using thread 4.implemented sculltrim successfully

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Driver Assignment

Following assignments to complete. 1) Implement lkm in which perform reading writting for multiple quantums. 2) Write two different application, one for reading and one for writting. Make a common node. Writer will write and reader will read. 3) Read … Continue reading →

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[Solution ]Ethernet and Network Controller (Realtek and Intel(device 0896 rev34)) Problem

00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Sandy Bridge Integrated Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04) 00:1a.0 USB Controller: Intel … Continue reading →

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threads

what could be a practical example of the usage of the shared global variables in threads….is the usage similar to the shared memory???

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uninterpretable results if I try to print minor number in open function

the obvious thought which comes in everybody’s mind is that when we give major and minor number at the time of mknod ,the device being opened is the one with the given minor number….i am also thinking the same…but discrepancy … Continue reading →

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what is the difference between static binding and dynamic binding…plss explain

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