43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
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From 7b1b44ea74c7d936bac1509cbe0a4637c7635f94 Mon Sep 17 00:00:00 2001
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From: anarkia1976 <stefano.villa1976@gmail.com>
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Date: Mon, 29 Jun 2015 16:41:07 +0200
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Subject: [PATCH] drivers: usb: keyboard/mouse: Added Boot mode patch
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---
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drivers/usb/gadget/f_hid.c | 15 ++++++++++++++-
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1 file changed, 14 insertions(+), 1 deletion(-)
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diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c
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index fa52b72..4b49e6e 100644
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--- a/drivers/usb/gadget/f_hid.c
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+++ b/drivers/usb/gadget/f_hid.c
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@@ -403,7 +403,12 @@ static int hidg_setup(struct usb_function *f,
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case ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8
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| HID_REQ_GET_PROTOCOL):
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VDBG(cdev, "get_protocol\n");
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- goto stall;
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+ length = min_t(unsigned, length, 1);
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+ if (hidg->bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT)
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+ ((u8 *) req->buf)[0] = 0; /* Boot protocol */
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+ else
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+ ((u8 *) req->buf)[0] = 1; /* Report protocol */
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+ goto respond;
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break;
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case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8
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@@ -417,6 +422,14 @@ static int hidg_setup(struct usb_function *f,
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case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8
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| HID_REQ_SET_PROTOCOL):
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VDBG(cdev, "set_protocol\n");
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+ length = 0;
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+ if (hidg->bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) {
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+ if (value == 0) /* Boot protocol */
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+ goto respond;
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+ } else {
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+ if (value == 1) /* Report protocol */
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+ goto respond;
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+ }
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goto stall;
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break;
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