moosecrap/evga-icx
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Added --i2c command line option

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This commit is contained in:
moosecrap 2025-02-16 22:28:16 -08:00
parent c4e7f7e8b9
commit 7cd23384f6
4 changed files with 26 additions and 6 deletions
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3
README.md
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@ -3,7 +3,7 @@
This program allows you to read temperature sensors off of supported EVGA 30-series iCX3 video cards, as well as control the fans individually.
## Prerequisites
A supported EVGA 30-series iCX3 card. I have not done extensive testing but belive this is every model of their:
A supported EVGA 30-series card with iCX3. This includes:
* RTX 3060 Ti
* RTX 3070
* RTX 3070 Ti
@ -39,6 +39,7 @@ Note that when controlling fans directly through iCX3 they will fall offline fro
```text
Available options:
--i2c N : Only probe I2C bus N instead of all (may help with stuttering with --watch)
--gpu N : Control only GPU N instead of all supported cards
--fan SPEED : Set all fans at once to SPEED (see below)
--fanN SPEED : Set fan N (0-3) to SPEED

11
evga-card.c
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@ -8,7 +8,7 @@
/* Search all i2c device files for ones are on a PCI device of a supported GPU,
and respond with the correct iCX3 version information */
int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus)
int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus, int i2c_bus)
{
char i2c_devices_path[NAME_MAX];
char device_path[NAME_MAX];
@ -20,6 +20,7 @@ int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus)
struct dirent *ent;
int num_gpus = 0;
int current_i2c_bus = -1;
unsigned short pci_vendor, pci_device, pci_subsystem_vendor, pci_subsystem_device = 0;
/* Start looking for I2C adapters in /sys/bus/i2c/devices/ */
@ -37,6 +38,14 @@ int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus)
if(strncmp(ent->d_name, "i2c-", 4) != 0)
continue;
/* Only probe the specific device given (if provided) */
if (i2c_bus >= 0) {
sscanf(ent->d_name, "i2c-%i", &current_i2c_bus);
if (current_i2c_bus != i2c_bus)
continue;
}
strcpy(device_path, i2c_devices_path);
strcat(device_path, ent->d_name);

2
evga-card.h
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@ -162,7 +162,7 @@ static struct gpu_pci_info evga_pci_ids[] =
{"EVGA GeForce RTX 3090 Ti FTW3 Ultra Gaming" , NVIDIA_VEN, NVIDIA_RTX3090TI_DEV, EVGA_SUB_VEN, EVGA_RTX3090TI_FTW3_ULTRA_GAMING_SUB_DEV }
};
int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus);
int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus, int i2c_bus);
unsigned short read_pci_id(char *device_path, char *field);
char *read_nvidia_pci_address(char *device_path);

16
evga-icx.c
View File

@ -24,7 +24,8 @@ char *header_start = "";
char *header_end = "";
static const char helpstring[] = "Available options:\n"
"--gpu N : Control only GPU N instead of all supported cards\n"
"--i2c N : Only probe I2C bus N instead of all (may help with stuttering with --watch)\n"
"--gpu N : Control only GPU N instead of all supported cards\n"
"--fan SPEED : Set all fans at once to SPEED (see below)\n"
"--fanN SPEED : Set fan N (0-3) to SPEED\n"
" SPEED may be one of the following:\n"
@ -47,13 +48,22 @@ int main (int argc, char **argv)
int print_info = 0;
int compact = 0;
int gpu_num = -1; /* Card to control */
int i2c_bus = -1;
int overwrite = 0;
unsigned int watch = 0;
char *fan_speed[ICX3_MAX_FANS] = {NULL};
/* Input parsing */
for (int i = 1; i < argc; i++){
if (strcmp(argv[i], "--gpu") == 0) {
if (strcmp(argv[i], "--i2c") == 0) {
i++;
if (i < argc) {
i2c_bus = atoi(argv[i]);
} else {
printf(helpstring);
return -1;
}
} else if (strcmp(argv[i], "--gpu") == 0) {
i++;
if (i < argc) {
gpu_num = atoi(argv[i]);
@ -119,7 +129,7 @@ int main (int argc, char **argv)
if (overwrite && !compact)
overwrite = 0;
gpu_count = find_evga_gpu_i2cs(gpus, MAX_GPUS);
gpu_count = find_evga_gpu_i2cs(gpus, MAX_GPUS, i2c_bus);
if (gpu_count == -1) {
printf("Error scanning I2C devices\n");