Re: [PATCH] usb: gadget: get rid of USB_GADGET_DUALSPEED andUSB_GADGET_SUPERSPEED

From: Michal Nazarewicz
Date: Wed Aug 17 2011 - 11:08:02 EST


On Wed, 17 Aug 2011, Michal Nazarewicz wrote:
@@ -1609,8 +1603,7 @@ int usb_composite_probe(struct
usb_composite_driver *driver,
driver->iProduct = driver->name;
composite_driver.function = (char *) driver->name;
composite_driver.driver.name = driver->name;
- composite_driver.speed = min((u8)composite_driver.speed,
- (u8)driver->max_speed);
+ composite_driver.speed = min(USB_SPEED_SUPER, driver->max_speed);

On Wed, 17 Aug 2011 16:20:15 +0200, Alan Stern wrote:
I wonder if the min is needed here at all. It doesn't seem to be doing any good.

On Wed, 17 Aug 2011, Michal Nazarewicz wrote:
Do you mean just doing âcomposite_driver.speed = driver->max_speedâ?

On Wed, 17 Aug 2011 16:47:37 +0200, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
Yes. After all, there aren't any usb_device_speed values larger than
USB_SPEED_SUPER.

Will fix.

--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -3562,11 +3562,7 @@ static void fsg_resume(struct usb_gadget *gadget)
static struct usb_gadget_driver fsg_driver = {
-#ifdef CONFIG_USB_GADGET_DUALSPEED
.speed = USB_SPEED_HIGH,
-#else
- .speed = USB_SPEED_FULL,
-#endif
.function = (char *) fsg_string_product,
.unbind = fsg_unbind,
.disconnect = fsg_disconnect,

You mustn't remove the .speed field entirely. Set it to USB_SPEED_HIGH.

Please note that the field is not in fact removed.

No, but you removed its initializer and as a result, it will be set to
0 whereas it should be set to USB_SPEED_HIGH.

The initializer is still there. ;) Only the â#â lines and the initializer
in the â#elseâ part are removed.

--
Best regards, _ _
.o. | Liege of Serenely Enlightened Majesty of o' \,=./ `o
..o | Computer Science, Michal "mina86" Nazarewicz (o o)
ooo +-----<email/xmpp: mnazarewicz@xxxxxxxxxx>-----ooO--(_)--Ooo--
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