RCS file: header.h,v Working file: header.h head: 1.3 branch: locks: strict vineet: 1.3 access list: symbolic names: keyword substitution: kv total revisions: 3; selected revisions: 3 description: This is base header file for simplest kernel module. included modules.h included init.h … Continue reading →

Sometimes, a shared resource is a simple integer value. Suppose your driver maintains a shared variable shrd that tells how many device operations are currently outstanding. Normally, even a simple operation such as: sgrd++; would require locking. Some processors might … Continue reading →

RCS file: RCS/header.h,v Working file: header.h head: 3.14 locks: strict root: 1.14 access list: symbolic names: keyword substitution: kv total revisions: 14;    selected revisions: 14 description: This is the base header file for our Project Character Device Driver ‘ Included … Continue reading →

RCS file: RCS/dev_open.c,v Working file: dev_open.c head: 1.13 branch: locks: strict root: 1.13 access list: symbolic names: keyword substitution: kv total revisions: 13; selected revisions: 13 description: this file contain our dev_open routine —————————- revision 1.13 locked by: root; date: … Continue reading →

RCS file: RCS/header.h,v Working file: header.h head: 1.17 branch: locks: strict root: 1.17 access list: symbolic names: keyword substitution: kv total revisions: 17;    selected revisions: 17 description: This is main header file All the required header file are include here … Continue reading →

RCS file: RCS/dev_trim.c,v 597 Working file: dev_trim.c 598 head: 1.34 599 branch: 600 locks: strict 601         root: 1.34 602 access list: 603 symbolic names: 604 keyword substitution: kv 605 total revisions: 34;    selected revisions: 34 606 description: 607 this file … Continue reading →

RCS file: RCS/dev_llseek.c,v 896 Working file: dev_llseek.c 897 head: 1.1 898 branch: 899 locks: strict 900         root: 1.1 901 access list: 902 symbolic names: 903 keyword substitution: kv 904 total revisions: 1;     selected revisions: 1 905 description: 906 this llseek … Continue reading →

RCS file: RCS/dev_ioctl.c,v 914 Working file: dev_ioctl.c 915 head: 1.6 916 branch: 917 locks: strict 918         root: 1.6 919 access list: 920 symbolic names: 921 keyword substitution: kv 922 total revisions: 6;     selected revisions: 6 923 description: 924 This is … Continue reading →

RCS file: trim.c,v Working file: trim.c head: 1.14 branch: locks: strict root: 1.14 access list: symbolic names: keyword substitution: kv total revisions: 14; selected revisions: 14 description: —————————- revision 1.14 locked by: root; date: 2014/12/13 11:18:22; author: root; state: Exp; … Continue reading →

RCS file: open_dev.c,v Working file: open_dev.c head: 1.12 branch: locks: strict root: 1.12 access list: symbolic names: keyword substitution: kv total revisions: 12; selected revisions: 12 description: open function for character driver is declared in this file —————————- revision 1.12 … Continue reading →

RCS file: RCS/header.h,v Working file: header.h head: 1.8 branch: locks: strict root: 1.8 access list: symbolic names: keyword substitution: kv total revisions: 8;    selected revisions: 8 description: This is main header file All the required header file are include here … Continue reading →

RCS file: ./header.h,v Working file: ./header.h head: 1.2 branch: locks: strict root: 1.2 access list: symbolic names: keyword substitution: kv total revisions: 2; selected revisions: 2 description: this is the header file for character driver in this file i include … Continue reading →