driver register and unregister with kernel perform using register_chrdev function and alloc_chrdev_region and unregister with unregister_chrdev_region . one issue faced: Instead of whole program execute successfully there is no output and after reboot it gives correct output.
Sir, I have implemeted the project of using multi thread in a single process then in multi process process for char driver by using sleep in the app.c for synchronization between multi thread for read,write,open,close in single process. Is it … Continue reading
Sir, I have implemented /proc file system successfully.
in case of append in character driver where we have to allocate new memory with continuation to the old memory (in lseek or write function)
sir please publish the project 11 thread ..its still in draft stage.. updates…. saurabh :facing problem with lseek in write working on menu table of read, write and optimization of lseek. sumit massey : done optimisation on lseek , read … Continue reading
Hi, Going to write an I2C Driver, need to know the relationship between the core driver of bus and board setup file. I am using OMAP2 based ARM board. Just want to know about basic relationship. Thanks Manoj Arora
Dear all Team member E2 Please join this thread for your all grievances and issues for up-mentioned topics Regards and thanks Dharmendra Nath Shandilya
Dear all Team member E2 Please join this thread for your all grievances and issues for up-mentioned topics Regards and thanks Dharmendra Nath Shandilya
here is the code #include”header.h” dev_t dev; void bulk_request(struct request_queue *q) { struct request *req; req = blk_fetch_request(q); while (req != NULL) { if (req == NULL || (req->cmd_type != REQ_TYPE_FS)) { printk (KERN_NOTICE “Skip non-CMD request\n”); __blk_end_request_all(req, … Continue reading
All E5 batch’s students are advised to update their current work status or progress in regard of character driver. Please all reply on same thread.
Sir, Is rules.d in udev is the only way for a Linux Kernel to know about the connectivity of the External H/w Device or something else is also there as an alternate to it..??
Implemented Serial Port DD for single byte with usage of 7 pins. Implemented Serial Port DD with FIFO for multiple bytes with the usage of 7 pins ….. Reading Interrupts……….
Implemented Compatibility Mode. Implemented Nibble mode for single and multiple bytes. Implemented Byte mode for single byte. Working on Byte mode for multiple bytes.