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authorJohan Hovold <jhovold@gmail.com>2010-05-16 15:06:55 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-20 13:21:48 -0700
commit9a1f298f8bc92f21b09bd7ef396c2fc6544ce9aa (patch)
treef9fae1079c49013defcb751a0e8d771c57e9fcf4 /drivers/usb
parent2afd8287c6e2ac6c1affb46d009cfd866dffed77 (diff)
USB: visor: increase bulk-out buffer size
Increase the bulk-out buffer size to avoid any regression in throughput after replacing the old writing scheme which used dynamic buffers (e.g. up to 2k). 256b has been determined to be a good choice for several drivers including ftdi_sio which used to have a more or less identical write implementation. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/serial/visor.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 17fd8822d07..eb76aaef426 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -186,6 +186,7 @@ static struct usb_serial_driver handspring_device = {
.usb_driver = &visor_driver,
.id_table = id_table,
.num_ports = 2,
+ .bulk_out_size = 256,
.open = visor_open,
.close = visor_close,
.throttle = usb_serial_generic_throttle,
@@ -206,6 +207,7 @@ static struct usb_serial_driver clie_5_device = {
.usb_driver = &visor_driver,
.id_table = clie_id_5_table,
.num_ports = 2,
+ .bulk_out_size = 256,
.open = visor_open,
.close = visor_close,
.throttle = usb_serial_generic_throttle,
@@ -226,6 +228,7 @@ static struct usb_serial_driver clie_3_5_device = {
.usb_driver = &visor_driver,
.id_table = clie_id_3_5_table,
.num_ports = 1,
+ .bulk_out_size = 256,
.open = visor_open,
.close = visor_close,
.throttle = usb_serial_generic_throttle,