From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roger Quadros Subject: Re: [PATCH v3 04/22] usb: gadget: composite: add USB_DT_OTG request handling Date: Tue, 16 Jun 2015 10:30:40 +0300 Message-ID: <20150616103040.03222d46@rockdesk> References: <1434437532-23678-1-git-send-email-jun.li@freescale.com> <1434437532-23678-5-git-send-email-jun.li@freescale.com> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1434437532-23678-5-git-send-email-jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Li Jun Cc: gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, balbi-l0cyMroinI0@public.gmane.org, peter.chen-KZfg59tc24xl57MIdRCFDg@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, macpaul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org List-Id: devicetree@vger.kernel.org On Tue, 16 Jun 2015 14:51:54 +0800 Li Jun wrote: > From: Macpaul Lin > > Copy usb_otg_descriptor from config's descriptor if host requests > USB_DT_OTG. > > Signed-off-by: Macpaul Lin > Signed-off-by: Li Jun Reviewed-by: Roger Quadros cheers, -roger > --- > drivers/usb/gadget/composite.c | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c > index 4e3447b..8322e80 100644 > --- a/drivers/usb/gadget/composite.c > +++ b/drivers/usb/gadget/composite.c > @@ -1534,6 +1534,31 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) > value = min(w_length, (u16) value); > } > break; > + case USB_DT_OTG: > + if (gadget_is_otg(gadget)) { > + struct usb_configuration *config; > + int otg_desc_len = 0; > + > + if (cdev->config) > + config = cdev->config; > + else > + config = list_first_entry( > + &cdev->configs, > + struct usb_configuration, list); > + if (!config) > + goto done; > + > + if (gadget->otg_rev >= 0x0200) > + otg_desc_len += sizeof( > + struct usb_otg20_descriptor); > + else > + otg_desc_len += sizeof( > + struct usb_otg_descriptor); > + > + value = min_t(int, w_length, otg_desc_len); > + memcpy(req->buf, config->descriptors[0], value); > + } > + break; > } > break; > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html