diff options
| author | Johan Hovold <johan@kernel.org> | 2020-10-25 18:45:55 +0100 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2020-11-04 11:01:39 +0100 |
| commit | 6fded8bcbc2e34d2267442376bf4fe9dde196d65 (patch) | |
| tree | e3562c0f1e9d7f5e25a3036ab439b56150ca9152 /drivers/usb/serial/keyspan_pda.c | |
| parent | 7184933b52a6b3e64171819b77f0bab018696cb2 (diff) | |
| download | lwn-6fded8bcbc2e34d2267442376bf4fe9dde196d65.tar.gz lwn-6fded8bcbc2e34d2267442376bf4fe9dde196d65.zip | |
USB: serial: keyspan_pda: increase transmitter threshold
Increase the transmitter threshold so that writing isn't resumed until
128 bytes are available in the device buffer thereby allowing for larger
and more efficient transfers.
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial/keyspan_pda.c')
| -rw-r--r-- | drivers/usb/serial/keyspan_pda.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index b3fb2ecefb31..3816bbc928b2 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -40,7 +40,7 @@ #define DRIVER_AUTHOR "Brian Warner <warner@lothar.com>" #define DRIVER_DESC "USB Keyspan PDA Converter driver" -#define KEYSPAN_TX_THRESHOLD 16 +#define KEYSPAN_TX_THRESHOLD 128 struct keyspan_pda_private { int tx_room; |