atomic_set(&ec->intr.leaving_burst, 0);
        return_VALUE(0);
       end:
-       printk("Error in acpi_ec_wait\n");
+       printk(KERN_WARNING PREFIX "Error in acpi_ec_wait\n");
        return_VALUE(-1);
 }
 
        atomic_set(&ec->intr.leaving_burst, 1);
        return_VALUE(0);
 end:
-       printk("leave burst_mode:error \n");
+       printk(KERN_WARNING PREFIX "leave burst_mode:error\n");
        return_VALUE(-1);
 }
 #endif /* ACPI_FUTURE_USAGE */
 
        status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
        if (status) {
-               printk("read EC, IB not empty\n");
+               printk(KERN_DEBUG PREFIX "read EC, IB not empty\n");
                goto end;
        }
        acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ,
                                &ec->common.command_addr);
        status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
        if (status) {
-               printk("read EC, IB not empty\n");
+               printk(KERN_DEBUG PREFIX "read EC, IB not empty\n");
        }
 
        acpi_hw_low_level_write(8, address, &ec->common.data_addr);
        status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
        if (status) {
-               printk("read EC, OB not full\n");
+               printk(KERN_DEBUG PREFIX "read EC, OB not full\n");
                goto end;
        }
        acpi_hw_low_level_read(8, data, &ec->common.data_addr);
 
        status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
        if (status) {
-               printk("write EC, IB not empty\n");
+               printk(KERN_DEBUG PREFIX "write EC, IB not empty\n");
        }
        acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE,
                                &ec->common.command_addr);
        status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
        if (status) {
-               printk("write EC, IB not empty\n");
+               printk(KERN_DEBUG PREFIX "write EC, IB not empty\n");
        }
 
        acpi_hw_low_level_write(8, address, &ec->common.data_addr);
        status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
        if (status) {
-               printk("write EC, IB not empty\n");
+               printk(KERN_DEBUG PREFIX "write EC, IB not empty\n");
        }
 
        acpi_hw_low_level_write(8, data, &ec->common.data_addr);
 
        status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
        if (status) {
-               printk("query EC, IB not empty\n");
+               printk(KERN_DEBUG PREFIX "query EC, IB not empty\n");
                goto end;
        }
        /*
                                &ec->common.command_addr);
        status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
        if (status) {
-               printk("query EC, OB not full\n");
+               printk(KERN_DEBUG PREFIX "query EC, OB not full\n");
                goto end;
        }