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usb: gadget: ffs: add HID descriptor support.

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When writing the descriptors to the ep0 file of functionfs, the HID descriptors where not recognized which caused the initialization from user space to fail.

Signed-off-by: Koen Beel <koen.beel@barco.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Change-Id: Id0f930e12a84315995a3ea4d08757ba1f3b567be
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>
This commit is contained in:
Koen Beel
2021-01-03 21:29:18 +01:00
committed by Francescodario Cuzzocrea
parent 5443a2ab30
commit 2121255626
1 changed files with 7 additions and 0 deletions
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drivers/usb/gadget/f_fs.c
+7
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@@ -21,6 +21,7 @@
#include <linux/blkdev.h>
#include <linux/pagemap.h>
#include <linux/export.h>
#include <linux/hid.h>
#include <asm/unaligned.h>
#include <linux/usb/composite.h>
@@ -1775,6 +1776,12 @@ static int __must_check ffs_do_desc(char *data, unsigned len,
}
break;
case HID_DT_HID:
pr_vdebug("hid descriptor\n");
if (length != sizeof(struct hid_descriptor))
goto inv_length;
break;
case USB_DT_OTG:
if (length != sizeof(struct usb_otg_descriptor))
goto inv_length;