On Wed, May 28, 2014 at 03:09:18PM +0800, Li Jun wrote:
> From: Li Jun <b47624@xxxxxxxxxxxxx>
>
> This patch sets host request flag in sys input when a A device
> set a_bus_req or a B device set b_bus_req in peripheral role.
>
> Signed-off-by: Li Jun <b47624@xxxxxxxxxxxxx>
> ---
> drivers/usb/chipidea/otg_fsm.c | 13 ++++++++++++-
> 1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
> index 923b789..41faffa 100644
> --- a/drivers/usb/chipidea/otg_fsm.c
> +++ b/drivers/usb/chipidea/otg_fsm.c
> @@ -82,6 +82,11 @@ set_a_bus_req(struct device *dev, struct device_attribute *attr,
> return count;
> }
> ci->fsm.a_bus_req = 1;
> + if (ci->transceiver->state == OTG_STATE_A_PERIPHERAL) {
> + ci->gadget.host_request_flag = 1;
> + mutex_unlock(&ci->fsm.lock);
> + return count;
> + }
> }
>
> disable_irq_nosync(ci->irq);
> @@ -162,8 +167,14 @@ set_b_bus_req(struct device *dev, struct device_attribute *attr,
> mutex_lock(&ci->fsm.lock);
> if (buf[0] == '0')
> ci->fsm.b_bus_req = 0;
> - else if (buf[0] == '1')
> + else if (buf[0] == '1') {
> ci->fsm.b_bus_req = 1;
> + if (ci->transceiver->state == OTG_STATE_B_PERIPHERAL) {
> + ci->gadget.host_request_flag = 1;
> + mutex_unlock(&ci->fsm.lock);
> + return count;
> + }
> + }
>
> disable_irq_nosync(ci->irq);
> queue_work(ci->wq, &ci->work);
> --
> 1.7.9.5
>
Where we have used gadget.host_request_flag, and what does this flag
be used for?
--
Best Regards,
Peter Chen
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