Currently the usb side setting of the USB_CDC_REQ_SEND_BREAK control
is not supported. This patch adds the support.
Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx>
---
drivers/usb/gadget/function/f_acm.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/usb/gadget/function/f_acm.c b/drivers/usb/gadget/function/f_acm.c
index 349945e064bba3..411eb489e0ff11 100644
--- a/drivers/usb/gadget/function/f_acm.c
+++ b/drivers/usb/gadget/function/f_acm.c
@@ -333,6 +333,8 @@ static void acm_complete_set_line_coding(struct usb_ep *ep,
}
}
+static int acm_send_break(struct gserial *port, int duration);
+
static int acm_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
{
struct f_acm *acm = func_to_acm(f);
@@ -391,6 +393,14 @@ static int acm_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
acm->port_handshake_bits = w_value;
break;
+ case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
+ | USB_CDC_REQ_SEND_BREAK:
+ if (w_index != acm->ctrl_id)
+ goto invalid;
+
+ acm_send_break(&acm->port, w_value);
+ break;
+
default:
invalid:
dev_vdbg(&cdev->gadget->dev,
--
2.30.2
