On Thu, Apr 16, 2015 at 02:57:02PM +0800, Macpaul Lin wrote:
> add supports OTG 2.0 for multi.c
>
> Signed-off-by: Macpaul Lin <macpaul@xxxxxxxxx>
> ---
> changes for v2:
> - no change
> changes for v3:
> - multi.c: migrate global static const OTG descriptor with runtime retrived
> capability information by calling usb_gadget_customize_otg_desc().
> changes for v4:
> - fix description of each git commits.
>
> drivers/usb/gadget/legacy/multi.c | 24 ++++++++----------------
> 1 file changed, 8 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/usb/gadget/legacy/multi.c b/drivers/usb/gadget/legacy/multi.c
> index 39d27bb..01bfe42 100644
> --- a/drivers/usb/gadget/legacy/multi.c
> +++ b/drivers/usb/gadget/legacy/multi.c
> @@ -78,22 +78,6 @@ static struct usb_device_descriptor device_desc = {
> .idProduct = cpu_to_le16(MULTI_PRODUCT_NUM),
> };
>
> -
> -static const struct usb_descriptor_header *otg_desc[] = {
> - (struct usb_descriptor_header *) &(struct usb_otg_descriptor){
> - .bLength = sizeof(struct usb_otg_descriptor),
> - .bDescriptorType = USB_DT_OTG,
> -
> - /*
> - * REVISIT SRP-only hardware is possible, although
> - * it would not be called "OTG" ...
> - */
> - .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
> - },
> - NULL,
> -};
> -
> -
You may need need above array, otherwise, there is no space to store
the otg descriptor.
> enum {
> MULTI_STRING_RNDIS_CONFIG_IDX = USB_GADGET_FIRST_AVAIL_IDX,
> MULTI_STRING_CDC_CONFIG_IDX,
> @@ -152,9 +136,13 @@ static struct usb_function *f_msg_rndis;
> static __init int rndis_do_config(struct usb_configuration *c)
> {
> struct fsg_opts *fsg_opts;
> + static const struct usb_descriptor_header *otg_desc[2];
> int ret;
>
> if (gadget_is_otg(c->cdev->gadget)) {
> + otg_desc[0] = (struct usb_descriptor_header *)
> + usb_gadget_customize_otg_desc(c->cdev->gadget);
> + otg_desc[1] = NULL;
> c->descriptors = otg_desc;
> c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
> }
> @@ -240,9 +228,13 @@ static struct usb_function *f_msg_multi;
> static __init int cdc_do_config(struct usb_configuration *c)
> {
> struct fsg_opts *fsg_opts;
> + static const struct usb_descriptor_header *otg_desc[2];
> int ret;
>
> if (gadget_is_otg(c->cdev->gadget)) {
> + otg_desc[0] = (struct usb_descriptor_header *)
> + usb_gadget_customize_otg_desc(c->cdev->gadget);
> + otg_desc[1] = NULL;
> c->descriptors = otg_desc;
> c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
> }
> --
> 1.8.3.2
>
--
Best Regards,
Peter Chen
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