Added support for reading VRAM and HotSpot temperatures.

evga-card.h

@@ -84,12 +84,13 @@
 #define EVGA_RTX3090TI_FTW3_ULTRA_GAMING_SUB_DEV        0x4985
 
 struct card_info {
-	char *card_name;
-	char *pci_id;
-	unsigned short pci_device_id;
-	char *i2c_dev_path;
-	int i2c_fd;
-	int product_id;
+	char *card_name;					/* The 'nice' name of the card */
+	char *pci_id;						/* PCI bus address in domain:bus:device.function format. May be shortened (e.g. c:00.0) */
+	unsigned short pci_device_id;		/* The device ID of the card, i.e. corresponds to the NVIDIA model number */
+	char *i2c_dev_path;					/* Path to the i2c device file */
+	int i2c_fd;							/* File descriptor for the i2c device file, for re-use */
+	int product_id;						/* EVGA internal product ID, as reported by the iCX3 controller */
+	unsigned int bar0;					/* Address of the card's PCI base address register */
 };
 
 struct gpu_pci_info {