On Tue, Apr 22, 2025, Prashanth K wrote:
> When host sends GET_STATUS to ECM interface, handle the request
> from the function driver. Since the interface is wakeup capable,
> set the corresponding bit, and set RW bit if the function is
> already armed for wakeup by the host.
>
> Cc: stable@kernel.org
> Fixes: 481c225c4802 ("usb: gadget: Handle function suspend feature selector")
> Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com>
> ---
> drivers/usb/gadget/function/f_ecm.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/usb/gadget/function/f_ecm.c b/drivers/usb/gadget/function/f_ecm.c
> index 80841de845b0..027226325039 100644
> --- a/drivers/usb/gadget/function/f_ecm.c
> +++ b/drivers/usb/gadget/function/f_ecm.c
> @@ -892,6 +892,12 @@ static void ecm_resume(struct usb_function *f)
> gether_resume(&ecm->port);
> }
>
> +static int ecm_get_status(struct usb_function *f)
> +{
> + return (f->func_wakeup_armed ? USB_INTRF_STAT_FUNC_RW : 0) |
> + USB_INTRF_STAT_FUNC_RW_CAP;
> +}
> +
> static void ecm_free(struct usb_function *f)
> {
> struct f_ecm *ecm;
> @@ -960,6 +966,7 @@ static struct usb_function *ecm_alloc(struct usb_function_instance *fi)
> ecm->port.func.disable = ecm_disable;
> ecm->port.func.free_func = ecm_free;
> ecm->port.func.suspend = ecm_suspend;
> + ecm->port.func.get_status = ecm_get_status;
> ecm->port.func.resume = ecm_resume;
>
> return &ecm->port.func;
> --
> 2.25.1
>
Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Thanks,
Thinh