Re: [PATCH] usb: core: quirks: Add 255-bytes initial config read quirk

[Greg KH <gregkh@linuxfoundation.org>]

On Sat, Jul 25, 2026 at 08:19:21PM +0530, Ishaan Dandekar wrote:
> Hi Greg,
> 
> Here is the follow-on patch adding the ShanWan Wireless Gamepad (2563:0575)
> to the static quirks table.
> 
> Note: This patch depends on the USB_QUIRK_WINDOWS_CONFIG_REQ_SIZE flag
> introduced in Nikhil Solanke's pending patch:
> https://lore.kernel.org/linux-usb/20260717195336.98500-2-nikhilsolanke5@gmail.com/
> 
> Thanks,
> Ishaan
> 
> ---
> 
> >From ecd1aa9afd8bc00a3e0b36cbe49b427f390e5de6 Mon Sep 17 00:00:00 2001
> From: Ishaan Dandekar <ishaan.dandekar@gmail.com>
> Date: Sat, 25 Jul 2026 20:03:28 +0530
> Subject: [PATCH] usb: quirks: Add ShanWan gamepad to quirk list
> 
> The ShanWan Wireless Gamepad (dongle ID 2563:0575) crashes with a -71
> EPROTO error during standard enumeration because it expects a 255-byte
> initial configuration request. Add this device to the quirk list to
> use the USB_QUIRK_WINDOWS_CONFIG_REQ_SIZE flag.
> 
> Signed-off-by: Ishaan Dandekar <ishaan.dandekar@gmail.com>
> ---
>  drivers/usb/core/quirks.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
> index 87ee2d938..696bb6548 100644
> --- a/drivers/usb/core/quirks.c
> +++ b/drivers/usb/core/quirks.c
> @@ -588,6 +588,9 @@ static const struct usb_device_id usb_quirk_list[] = {
>   { USB_DEVICE(0x2386, 0x3119), .driver_info = USB_QUIRK_NO_LPM },
> 
>   { USB_DEVICE(0x2386, 0x350e), .driver_info = USB_QUIRK_NO_LPM },
> +
> + /* ShanWan Wireless Gamepad */
> + { USB_DEVICE(0x2563, 0x0575), .driver_info =
> USB_QUIRK_WINDOWS_CONFIG_REQ_SIZE },
> 
>   /* UGREEN 35871 - BOS descriptor fetch hangs at SuperSpeed Plus */
>   { USB_DEVICE(0x2b89, 0x5871), .driver_info = USB_QUIRK_NO_BOS },
> -- 
> 2.34.1
> 

This patch is corrupted and can not be applied, please just send it with
git send-email so that this doesn't happen.

thanks,

greg k-h