usb: gadget: ffs: add HID descriptor support.
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>
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@ -21,6 +21,7 @@
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#include <linux/blkdev.h>
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#include <linux/pagemap.h>
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#include <linux/export.h>
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#include <linux/hid.h>
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#include <asm/unaligned.h>
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#include <linux/usb/composite.h>
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@ -1671,6 +1672,12 @@ static int __must_check ffs_do_desc(char *data, unsigned len,
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}
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break;
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case HID_DT_HID:
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pr_vdebug("hid descriptor\n");
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if (length != sizeof(struct hid_descriptor))
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goto inv_length;
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break;
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case USB_DT_OTG:
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if (length != sizeof(struct usb_otg_descriptor))
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goto inv_length;
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