change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/drivers/usb/class/usblp.c
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@@ -1116,6 +1116,12 @@
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 static DEVICE_ATTR_RO(ieee1284_id);
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+static struct attribute *usblp_attrs[] = {
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+	&dev_attr_ieee1284_id.attr,
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+	NULL,
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+};
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+ATTRIBUTE_GROUPS(usblp);
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+
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 static int usblp_probe(struct usb_interface *intf,
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 		       const struct usb_device_id *id)
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 {
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@@ -1190,9 +1196,6 @@
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 	/* Retrieve and store the device ID string. */
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 	usblp_cache_device_id_string(usblp);
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-	retval = device_create_file(&intf->dev, &dev_attr_ieee1284_id);
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-	if (retval)
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-		goto abort_intfdata;
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 #ifdef DEBUG
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 	usblp_check_status(usblp, 0);
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@@ -1223,7 +1226,6 @@
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 abort_intfdata:
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 	usb_set_intfdata(intf, NULL);
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-	device_remove_file(&intf->dev, &dev_attr_ieee1284_id);
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 abort:
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 	kfree(usblp->readbuf);
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 	kfree(usblp->statusbuf);
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@@ -1398,8 +1400,6 @@
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 		BUG();
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 	}
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-	device_remove_file(&intf->dev, &dev_attr_ieee1284_id);
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-
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 	mutex_lock(&usblp_mutex);
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 	mutex_lock(&usblp->mut);
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 	usblp->present = 0;
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@@ -1461,6 +1461,7 @@
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 	.suspend =	usblp_suspend,
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 	.resume =	usblp_resume,
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 	.id_table =	usblp_ids,
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+	.dev_groups =	usblp_groups,
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 	.supports_autosuspend =	1,
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 };
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