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Commit 7105fbfe authored by Mohammed Javid's avatar Mohammed Javid
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usb: gadget: increase the buffer size to 1 MB for tty ports 



To support LTE peak data rates of 150MBPS Uplink for DUN+SoftAP usecases

Change-Id: I947b6338661cab3d3346d280b3ec4ccbac6b2f94
Signed-off-by: default avatarMohammed Javid <mjavid@codeaurora.org>
parent 904fabdd

drivers/usb/gadget/function/u_serial.c

+4 −0
Original line number Diff line number Diff line
@@ -1305,10 +1305,14 @@ gs_port_alloc(unsigned port_num, struct usb_cdc_line_coding *coding) 
	}



	tty_port_init(&port->port);

	tty_buffer_set_limit(&port->port, 8388608);

	spin_lock_init(&port->port_lock);

	init_waitqueue_head(&port->drain_wait);

	init_waitqueue_head(&port->close_wait);



	pr_debug("%s open:ttyGS%d and set 8388608, avail:%d\n", __func__,

		port_num, tty_buffer_space_avail(&port->port));



	tasklet_init(&port->push, gs_rx_push, (unsigned long) port);



	INIT_LIST_HEAD(&port->read_pool);