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| author | Johan Hovold <jhovold@gmail.com> | 2010-03-17 23:00:38 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-20 22:21:33 +0200 |
| commit | d4e598f65de351eb66a90889d9ceaaca472fda40 (patch) | |
| tree | 54a58fb0973a1e65b7e28fde4b98eb451db2c93b /drivers/usb/serial/cp210x.c | |
| parent | USB: serial: allow drivers to define bulk buffer sizes (diff) | |
| download | linux-d4e598f65de351eb66a90889d9ceaaca472fda40.tar.xz linux-d4e598f65de351eb66a90889d9ceaaca472fda40.zip | |
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: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/cp210x.c')
| -rw-r--r-- | drivers/usb/serial/cp210x.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index ec9b0449ccf6..e3440003810e 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -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, |