usb: gadget: f_hid: Fix zero length packet transfer

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[ Upstream commit ed6f727c57 ]

Set the hid req->zero flag of ep0/in_ep to true by default,
then the UDC drivers can transfer a zero length packet at
the end if the hid transfer with size divisible to EPs max
packet size according to the USB 2.0 spec.

Signed-off-by: William Wu <william.wu@rock-chips.com>
Link: https://lore.kernel.org/r/1756204087-26111-1-git-send-email-william.wu@rock-chips.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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William Wu 2025-08-26 18:28:07 +08:00 • committed by Greg Kroah-Hartman

parent e014ff9ec1

commit fd6820af0a

1 changed files with 2 additions and 2 deletions

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drivers/usb/gadget/function/f_hid.c

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