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Subject[PATCH 5/8] usb: gadget: f_acm: initialize port_line_coding when creating an instance
Date
Initialize acm->port_line_coding with something that makes sense so
that we can return a valid line coding if the host requests
GetLineCoding before requesting SetLineCoding

Signed-off-by: Tal Shorer <tal.shorer@gmail.com>
---
drivers/usb/gadget/function/f_acm.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/usb/gadget/function/f_acm.c b/drivers/usb/gadget/function/f_acm.c
index e023313..b7a1466 100644
--- a/drivers/usb/gadget/function/f_acm.c
+++ b/drivers/usb/gadget/function/f_acm.c
@@ -763,6 +763,12 @@ static struct usb_function *acm_alloc_func(struct usb_function_instance *fi)
acm->port.func.unbind = acm_unbind;
acm->port.func.free_func = acm_free_func;

+ /* initialize port_line_coding with something that makes sense */
+ coding.dwDTERate = cpu_to_le32(9600);
+ coding.bCharFormat = USB_CDC_1_STOP_BITS;
+ coding.bParityType = USB_CDC_NO_PARITY;
+ coding.bDataBits = 8;
+
return &acm->port.func;
}

--
2.7.4
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