From 73277de40b34ee14f3fe21f3d1f8badad49ba2df Mon Sep 17 00:00:00 2001 From: Hemant Kumar Date: Thu, 17 Nov 2016 14:13:14 -0800 Subject: [PATCH] usb: gadget: Notify QTI upon cable connect for DPL QTI needs an indication of cable connect for DPL. Since host DPL driver does not send DTR indication send zero length packet to QTI upon cable connect. Change-Id: I545771f9a84ecc9c2f641c17e057673a32b1f305 Signed-off-by: Hemant Kumar --- drivers/usb/gadget/function/f_gsi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/gadget/function/f_gsi.c b/drivers/usb/gadget/function/f_gsi.c index 738f20d935d6..af20033b621f 100644 --- a/drivers/usb/gadget/function/f_gsi.c +++ b/drivers/usb/gadget/function/f_gsi.c @@ -1984,6 +1984,10 @@ static int gsi_set_alt(struct usb_function *f, unsigned intf, unsigned alt) atomic_set(&gsi->connected, 1); + /* send 0 len pkt to qti to notify state change */ + if (gsi->prot_id == IPA_USB_DIAG) + gsi_ctrl_send_cpkt_tomodem(gsi, NULL, 0); + return 0; notify_ep_disable: