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add support for $ibm_thinklight

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Some IBM/Lenovo models come with a light on the top edge of the
display to illuminate the keyboard. This either reports 'on', 'off'
or 'unknown'.
This commit is contained in:
eskerda 2013-12-06 16:18:30 +01:00
parent b5e17a4c50
commit 68263d4556
4 changed files with 57 additions and 0 deletions
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10
doc/variables.xml
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@ -1676,6 +1676,16 @@
Sensor 0 is on the CPU, 3 is on the GPU.
<para /></listitem>
</varlistentry>
<varlistentry>
<term>
<command>
<option>ibm_thinklight</option>
</command>
</term>
<listitem>If running the IBM ACPI, displays the status of your
ThinkLight™. Value is either 'on', 'off' or 'unknown'.
<para /></listitem>
</varlistentry>
<varlistentry>
<term>
<command>

2
src/core.cc
View File

@ -509,6 +509,8 @@ struct text_object *construct_text_object(char *s, const char *arg,
obj->callbacks.print = &get_ibm_acpi_volume;
END OBJ(ibm_brightness, 0)
obj->callbacks.print = &get_ibm_acpi_brightness;
END OBJ(ibm_thinklight, 0)
obj->callbacks.print = &get_ibm_acpi_thinklight;
#endif
/* information from sony_laptop kernel module
* /sys/devices/platform/sony-laptop */

44
src/ibm.cc
View File

@ -261,6 +261,50 @@ void get_ibm_acpi_brightness(struct text_object *obj, char *p, int p_max_size)
snprintf(p, p_max_size, "%d", brightness);
}
/* get ThinkLight status on IBM/Lenovo laptops running the ibm acpi.
* /proc/acpi/ibm/light looks like this (2 lines):
status: off
commands: on, off
* http://ibm-acpi.sourceforge.net/README reports that it's also possible to
* get "unknown" for a few models that do not make the status available.
* Lluis Esquerda (eskerda@gmail.com) */
void get_ibm_acpi_thinklight(struct text_object *obj, char *p, int p_max_size)
{
FILE *fp;
char thinklight[8];
char filename[128];
(void)obj;
if (!p || p_max_size <= 0) {
return;
}
snprintf(filename, 127, "%s/light", IBM_ACPI_DIR);
fp = fopen(filename, "r");
if (fp != NULL) {
while (!feof(fp)) {
char line[256];
if (fgets(line, 255, fp) == NULL) {
break;
}
if (sscanf(line, "status: %s", thinklight)) {
break;
}
}
} else {
CRIT_ERR(NULL, NULL, "can't open '%s': %s\nYou are not using the IBM "
"ACPI. Remove ibm* from your " PACKAGE_NAME" config file.",
filename, strerror(errno));
}
fclose(fp);
snprintf(p, p_max_size, "%s", thinklight);
}
void parse_ibm_temps_arg(struct text_object *obj, const char *arg)
{
if (!isdigit(arg[0]) || strlen(arg) > 1 || atoi(&arg[0]) >= 8) {

1
src/ibm.h
View File

@ -30,6 +30,7 @@ void get_ibm_acpi_fan(struct text_object *, char *, int);
int get_ibm_acpi_temps(void);
void get_ibm_acpi_volume(struct text_object *, char *, int);
void get_ibm_acpi_brightness(struct text_object *, char *, int);
void get_ibm_acpi_thinklight(struct text_object *, char *, int);
void parse_ibm_temps_arg(struct text_object *, const char *);
void print_ibm_temps(struct text_object *, char *, int);