Hi,
On Thu, Mar 12, 2015 at 10:30:21AM +0800, Li Jun wrote:
> From: Li Jun <b47624@xxxxxxxxxxxxx>
>
> Peripheral answers OTG status selector request from host according to
> host_request_flag of gadget, length is 1.
>
> Signed-off-by: Li Jun <jun.li@xxxxxxxxxxxxx>
> ---
> drivers/usb/chipidea/udc.c | 28 +++++++++++++++++++++++-----
> 1 file changed, 23 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
> index 4254792..eed66bc 100644
> --- a/drivers/usb/chipidea/udc.c
> +++ b/drivers/usb/chipidea/udc.c
> @@ -831,7 +831,17 @@ __acquires(hwep->lock)
> return -ENOMEM;
>
> req->complete = isr_get_status_complete;
> - req->length = 2;
> + if (setup->wIndex == OTG_STS_SELECTOR) {
> + if (ci_otg_is_fsm_mode(ci)) {
> + req->length = 1;
> + } else {
> + retval = -ENOTSUPP;
> + goto err_free_req;
> + }
> + } else {
> + req->length = 2;
> + }
this could still be done generically in composite.c
--
balbi
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