Commit 5f42cd57 authored Jul 17, 2015 by Azhar Shaikh

usb: gadget: Fix disabling L1 LPM capability on SS devices connected as HS



Commit 628fd947 ("usb: gadget: Disable L1 LPM capability") sets
the USB version of Superspeed devices connected at High Speed devices
as 0x0200.
Consider the below case:
1. Connect HS cable - USB type is 0x0200
2. Disconnect HS cable and connect SS cable - USB type is 0x0300
3. Disconnect SS cable and again connect HS cable - USB type is 0x0300
So for Superspeed devices connected at High Speed incorrect USB type
is being set.
Fix this by adding a simple else check and explicitly setting it to 0x0200.

Change-Id: I5746049870973bcdbe38ccfda56fec5c8e8f0f13
Signed-off-by: Azhar Shaikh <azhars@codeaurora.org>

parent f1d461b6

drivers/usb/gadget/composite.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1630,6 +1630,8 @@ composite_setup(struct usb_gadget gadget, const struct usb_ctrlrequest ctrl)
		cdev->desc.bcdUSB = cpu_to_le16(0x0210);
		DBG(cdev,
		"Config HS device with LPM(L1)\n");
		} else {
		cdev->desc.bcdUSB = cpu_to_le16(0x0200);
		}
		} else if (gadget->l1_supported) {
		cdev->desc.bcdUSB = cpu_to_le16(0x0210);