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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>
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1 changed files with 3 additions and 0 deletions
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@ -186,6 +186,7 @@ static struct usb_serial_driver handspring_device = {
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.usb_driver = &visor_driver,
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.id_table = id_table,
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.num_ports = 2,
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.bulk_out_size = 256,
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.open = visor_open,
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.close = visor_close,
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.throttle = usb_serial_generic_throttle,
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@ -206,6 +207,7 @@ static struct usb_serial_driver clie_5_device = {
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.usb_driver = &visor_driver,
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.id_table = clie_id_5_table,
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.num_ports = 2,
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.bulk_out_size = 256,
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.open = visor_open,
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.close = visor_close,
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.throttle = usb_serial_generic_throttle,
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@ -226,6 +228,7 @@ static struct usb_serial_driver clie_3_5_device = {
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.usb_driver = &visor_driver,
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.id_table = clie_id_3_5_table,
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.num_ports = 1,
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.bulk_out_size = 256,
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.open = visor_open,
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.close = visor_close,
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.throttle = usb_serial_generic_throttle,
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