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USB: serial: make bulk_out_size a lower limit

Drivers are allowed to override the default bulk-out buffer size
(endpoint maximum packet size) in order to increase throughput, but it
does not make much sense to allow buffers smaller than the default.

Note that this is already how bulk_in_size is defined.

Signed-off-by: Johan Hovold <>
Signed-off-by: Greg Kroah-Hartman <>

Johan Hovold Johan Hovold 2014-03-12

Greg Kroah-Hartman Greg Kroah-Hartman 2014-03-12

changed drivers/usb/serial/usb-serial.c
changed include/linux/usb/serial.h
drivers/usb/serial/usb-serial.c Diff Switch to side-by-side view
include/linux/usb/serial.h Diff Switch to side-by-side view

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