wt/lm-sensors
1
0 Fork 0
mirror of https://github.com/lm-sensors/lm-sensors.git synced 2026-10-30 13:00:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

add sysfs write support

Browse Source 
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2066 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Mark D. Studebaker committed 2003-11-17 14:22:05 +00:00
1 parent 4f3ded5af9
commit a6ba35fb66
1 file changed
+51 -30
Download Patch File Download Diff File Expand all files Collapse all files
lib/proc.c
+51 -30
View File
@@ -112,9 +112,7 @@ int sensors_read_proc_chips(void)
continue;
*/
strcpy(n, sysfs);
strcat(n, "/");
strcat(n, de->d_name);
sprintf(n, "%s/%s", sysfs, de->d_name);
strcpy(dirname, n);
strcat(n, "/name");
@@ -278,12 +276,12 @@ int sensors_get_chip_id(sensors_chip_name name)
/* This reads a feature /proc file */
int sensors_read_proc(sensors_chip_name name, int feature, double *value)
{
int sysctl_name[4] = { CTL_DEV, DEV_SENSORS };
const sensors_chip_feature *the_feature;
int buflen = BUF_LEN;
int mag;
char n[NAME_MAX];
FILE *f;
int sysctl_name[4] = { CTL_DEV, DEV_SENSORS };
const sensors_chip_feature *the_feature;
int buflen = BUF_LEN;
int mag;
char n[NAME_MAX];
FILE *f;
if(!foundsysfs)
if ((sysctl_name[2] = sensors_get_chip_id(name)) < 0)
@@ -327,26 +325,49 @@ int sensors_read_proc(sensors_chip_name name, int feature, double *value)
int sensors_write_proc(sensors_chip_name name, int feature, double value)
{
int sysctl_name[4] = { CTL_DEV, DEV_SENSORS };
const sensors_chip_feature *the_feature;
int buflen = BUF_LEN;
int mag;
int sysctl_name[4] = { CTL_DEV, DEV_SENSORS };
const sensors_chip_feature *the_feature;
int buflen = BUF_LEN;
int mag;
char n[NAME_MAX];
FILE *f;
if ((sysctl_name[2] = sensors_get_chip_id(name)) < 0)
return sysctl_name[2];
if (! (the_feature = sensors_lookup_feature_nr(name.prefix,feature)))
return -SENSORS_ERR_NO_ENTRY;
sysctl_name[3] = the_feature->sysctl;
if (sysctl(sysctl_name, 4, buf, &buflen, NULL, 0))
return -SENSORS_ERR_PROC;
if (sysctl_name[0] != CTL_DEV) { sysctl_name[0] = CTL_DEV ; }
for (mag = the_feature->scaling; mag > 0; mag --)
value *= 10.0;
for (; mag < 0; mag ++)
value /= 10.0;
* ((long *) (buf + the_feature->offset)) = (long) value;
buflen = the_feature->offset + sizeof(long);
if (sysctl(sysctl_name, 4, NULL, 0, buf, buflen))
return -SENSORS_ERR_PROC;
return 0;
if(!foundsysfs)
if ((sysctl_name[2] = sensors_get_chip_id(name)) < 0)
return sysctl_name[2];
if (! (the_feature = sensors_lookup_feature_nr(name.prefix,feature)))
return -SENSORS_ERR_NO_ENTRY;
if(foundsysfs) {
strcpy(n, name.busname);
strcat(n, "/");
if(the_feature->sysname != NULL)
strcat(n, the_feature->sysname);
else
strcat(n, the_feature->name);
if ((f = fopen(n, "w")) != NULL) {
if(the_feature->sysscaling)
mag = the_feature->sysscaling;
else
mag = the_feature->scaling;
for (; mag > 0; mag --)
value *= 10.0;
fprintf(f, "%d", (int) value);
fclose(f);
} else
return -SENSORS_ERR_PROC;
} else {
sysctl_name[3] = the_feature->sysctl;
if (sysctl(sysctl_name, 4, buf, &buflen, NULL, 0))
return -SENSORS_ERR_PROC;
if (sysctl_name[0] != CTL_DEV) { sysctl_name[0] = CTL_DEV ; }
for (mag = the_feature->scaling; mag > 0; mag --)
value *= 10.0;
for (; mag < 0; mag ++)
value /= 10.0;
* ((long *) (buf + the_feature->offset)) = (long) value;
buflen = the_feature->offset + sizeof(long);
if (sysctl(sysctl_name, 4, NULL, 0, buf, buflen))
return -SENSORS_ERR_PROC;
}
return 0;
}