+#define FEATURE_I2CBLOCK (1<<0)
+static unsigned int vt596_features;
+
+#ifdef DEBUG
+static void vt596_dump_regs(const char *msg, u8 size)
+{
+ dev_dbg(&vt596_adapter.dev, "%s: STS=%02x CNT=%02x CMD=%02x ADD=%02x "
+ "DAT=%02x,%02x\n", msg, inb_p(SMBHSTSTS), inb_p(SMBHSTCNT),
+ inb_p(SMBHSTCMD), inb_p(SMBHSTADD), inb_p(SMBHSTDAT0),
+ inb_p(SMBHSTDAT1));
+
+ if (size == VT596_BLOCK_DATA
+ || size == VT596_I2C_BLOCK_DATA) {
+ int i;
+
+ dev_dbg(&vt596_adapter.dev, "BLK=");
+ for (i = 0; i < I2C_SMBUS_BLOCK_MAX / 2; i++)
+ printk("%02x,", inb_p(SMBBLKDAT));
+ printk("\n");
+ dev_dbg(&vt596_adapter.dev, " ");
+ for (; i < I2C_SMBUS_BLOCK_MAX - 1; i++)
+ printk("%02x,", inb_p(SMBBLKDAT));
+ printk("%02x\n", inb_p(SMBBLKDAT));
+ }
+}
+#else
+static inline void vt596_dump_regs(const char *msg, u8 size) { }
+#endif
+
+/* Return -1 on error, 0 on success */
+static int vt596_transaction(u8 size)