I've got a crappy cypress converter here, and while running at higher baud rates craps out on throughput, it works fine with lower ones. While it'd be nice to simply use a lower baud rate, not all devices can be configured this way, and it is possible to (slowly) interact at higher rates by sending a byte at a time. So let people force higher rates when they need it via a module parameter. Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx> --- drivers/usb/serial/cypress_m8.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 47a1819..60c2002 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -73,6 +73,7 @@ static int debug; static int stats; static int interval; +static int unstable_bauds; /* * Version Information @@ -291,6 +292,9 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate) struct cypress_private *priv; priv = usb_get_serial_port_data(port); + if (unstable_bauds) + return new_rate; + /* * The general purpose firmware for the Cypress M8 allows for * a maximum speed of 57600bps (I have no idea whether DeLorme @@ -1643,3 +1647,5 @@ module_param(stats, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(stats, "Enable statistics or not"); module_param(interval, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(interval, "Overrides interrupt interval"); +module_param(unstable_bauds, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(unstable_bauds, "Allow unstable baud rates"); -- 1.6.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
