Commit a99d8a45 authored by Michal Nazarewicz's avatar Michal Nazarewicz Committed by Greg Kroah-Hartman
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USB: gadget: g_multi: moved strings handling code to composite 



This patch removes some of the string registration from the
Multifunction Composite Gadget as composite layer can handle
the iManufacturer and iProduct for us.

This also adds the "needs_serial" so that composite layer will
issue a warning if user space fails to provide the iSerialNumber
module parameter.

Signed-off-by: default avatarMichal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 7c2b61d0

drivers/usb/gadget/multi.c

+3 −16
Original line number Diff line number Diff line
@@ -121,8 +121,6 @@ static const struct usb_descriptor_header *otg_desc[] = { 




enum {

	MULTI_STRING_MANUFACTURER_IDX,

	MULTI_STRING_PRODUCT_IDX,

#ifdef CONFIG_USB_G_MULTI_RNDIS

	MULTI_STRING_RNDIS_CONFIG_IDX,

#endif
@@ -131,11 +129,7 @@ enum { 
#endif

};



static char manufacturer[50];



static struct usb_string strings_dev[] = {

	[MULTI_STRING_MANUFACTURER_IDX].s = manufacturer,

	[MULTI_STRING_PRODUCT_IDX].s      = DRIVER_DESC,

#ifdef CONFIG_USB_G_MULTI_RNDIS

	[MULTI_STRING_RNDIS_CONFIG_IDX].s = "Multifunction with RNDIS",

#endif
@@ -314,20 +308,11 @@ static int __ref multi_bind(struct usb_composite_dev *cdev) 
		device_desc.bcdDevice = cpu_to_le16(0x0300 | 0x0099);

	}



	/* allocate string descriptor numbers */

	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",

	         init_utsname()->sysname, init_utsname()->release,

	         gadget->name);



	/* allocate string IDs */

	status = usb_string_ids_tab(cdev, strings_dev);

	if (unlikely(status < 0))

		goto fail2;



	device_desc.iManufacturer =

		strings_dev[MULTI_STRING_MANUFACTURER_IDX].id;

	device_desc.iProduct      =

		strings_dev[MULTI_STRING_PRODUCT_IDX].id;



	/* register configurations */

	status = rndis_config_register(cdev);

	if (unlikely(status < 0))
@@ -370,6 +355,8 @@ static struct usb_composite_driver multi_driver = { 
	.strings	= dev_strings,

	.bind		= multi_bind,

	.unbind		= __exit_p(multi_unbind),

	.iProduct	= DRIVER_DESC,

	.needs_serial	= 1,

};