add ip1811 driver

hc

2023-11-22 9ca5fbcb63a8dcaee0527f96afb91dc4b4bd8fa9

 kernel/drivers/misc/eeprom/at24.c
..
..
@@ -564,6 +564,33 @@
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 }
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 EXPORT_SYMBOL(at24_mac1_read);
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+ssize_t at24_mac2_read(unsigned char* mac)
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+{ 
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+        char buf[20];
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+        char buf_tmp[12];
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+        ssize_t ret;
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+        if (at24_private == NULL)
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+        {
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+                printk("zcl: at24_mac_read at24_private==null error");
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+                return 0;
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+        }
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+        memset(buf, 0x00, 20);
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+        memset(buf_tmp, 0x00, 12);
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+        ret = at24_read_private(at24_private, buf, 0x20, 6);
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+        if (ret > 0)
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+        {
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+                *mac = buf[0];
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+                *(mac + 1) = buf[1];
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+                *(mac + 2) = buf[2];
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+                *(mac + 3) = buf[3];
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+                *(mac + 4) = buf[4];
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+                *(mac + 5) = buf[5];
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+        }
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+        printk("at24_mac2_read ...............\n");
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+        return ret;
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+}
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+EXPORT_SYMBOL(at24_mac2_read);
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+
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 static int at24_write(void *priv, unsigned int off, void *val, size_t count)
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 {
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 	struct at24_data *at24;