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add hack to support eeproms in 2.6 kernels

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2162 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Mark D. Studebaker 2003-12-13 19:01:43 +00:00
parent 49f4d2fe55
commit 01c921f51d
2 changed files with 40 additions and 16 deletions
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4
CHANGES
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@ -18,7 +18,9 @@ ask CVS about it:
-----------------------------------------------------------------------------
2.8.3 (2004????)
Module it87: Fix sg_tlx /proc entries
Library: Add 2.6 eeprom support
Module it87: Fix sg_tlx writes
2.8.2 (20031211)
IMPORTANT: Limit initialization removed from all chip drivers!

52
lib/proc.c
View File

@ -284,13 +284,16 @@ int sensors_get_chip_id(sensors_chip_name name)
return -SENSORS_ERR_NO_ENTRY;
}
/* This reads a feature /proc file */
/* This reads a feature /proc or /sys file.
Sysfs uses a one-value-per file system...
except for eeprom, which puts the entire eeprom into one 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;
int mag, eepromoffset, i, ret=0;
char n[NAME_MAX];
FILE *f;
@ -302,19 +305,38 @@ int sensors_read_proc(sensors_chip_name name, int feature, double *value)
if(foundsysfs) {
strcpy(n, name.busname);
strcat(n, "/");
/* use rindex to append sysname to n */
getsysname(the_feature, rindex(n, '\0'), &mag);
if ((f = fopen(n, "r")) != NULL) {
fscanf(f, "%lf", value);
fclose(f);
for (; mag > 0; mag --)
*value /= 10.0;
// fprintf(stderr, "Feature %s value %lf scale %d offset %d\n",
// the_feature->name, *value,
// the_feature->scaling, the_feature->offset);
return 0;
} else
return -SENSORS_ERR_PROC;
/* total hack for eeprom */
if (! strcmp(name.prefix, "eeprom")){
strcat(n, "eeprom");
if ((f = fopen(n, "r")) != NULL) {
eepromoffset = 1 +
(the_feature->offset / sizeof(long)) +
(16 * (the_feature->sysctl - EEPROM_SYSCTL1));
for(i = 0; i <= eepromoffset; i++)
if(EOF == (ret = getc(f)))
break;
fclose(f);
if(ret == EOF)
return -SENSORS_ERR_PROC;
*value = ret;
return 0;
} else
return -SENSORS_ERR_PROC;
} else {
/* use rindex to append sysname to n */
getsysname(the_feature, rindex(n, '\0'), &mag);
if ((f = fopen(n, "r")) != NULL) {
fscanf(f, "%lf", value);
fclose(f);
for (; mag > 0; mag --)
*value /= 10.0;
// fprintf(stderr, "Feature %s value %lf scale %d offset %d\n",
// the_feature->name, *value,
// the_feature->scaling, the_feature->offset);
return 0;
} else
return -SENSORS_ERR_PROC;
}
} else {
sysctl_name[3] = the_feature->sysctl;
if (sysctl(sysctl_name, 4, buf, &buflen, NULL, 0))