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Commit d4e598f6 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: cp210x: increase the bulk-out buffer size to 256 byte 



Increase the bulk-out buffer size from 64 to 256 byte.

This gives a significant increase in throughput already at 1Mbaud
(e.g. 710 instead of 640 KB/s) as well as lowered CPU usage.

Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent bbcb2b90

drivers/usb/serial/cp210x.c

+1 −0
Original line number Diff line number Diff line
@@ -138,6 +138,7 @@ static struct usb_serial_driver cp210x_device = { 
	.usb_driver		= &cp210x_driver,

	.id_table		= id_table,

	.num_ports		= 1,

	.bulk_out_size		= 256,

	.open			= cp210x_open,

	.close			= cp210x_close,

	.break_ctl		= cp210x_break_ctl,