Commit dfeab386 authored Jun 04, 2018 by Pratham Pratap Committed by Gerrit - the friendly Code Review server Jun 08, 2018

usb: gadget: f_cdev: Send zero length packets in modem data calls



The USB protocol requires zero length packets to be sent when the data
transmission ends on a USB packet size boundary. This fix enables sending
zero length packets when required.

Change-Id: I0269ec7ff25c82000f2a5bc4adb449bc0231c66c
Signed-off-by: Pratham Pratap <prathampratap@codeaurora.org>

parent 6c21ab56

drivers/usb/gadget/function/f_cdev.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1251,6 +1251,7 @@ ssize_t f_cdev_write(struct file *file,
		ret = -EFAULT;
		} else {
		req->length = xfer_size;
		req->zero = 1;
		ret = usb_ep_queue(in, req, GFP_KERNEL);
		if (ret) {
		pr_err("EP QUEUE failed:%d\n", ret);