usb: cdc-acm: send zero packet for intel 7260 modem

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commit ffdb1e369a upstream.

For Intel 7260 modem, it is needed for host side to send zero
packet if the BULK OUT size is equal to USB endpoint max packet
length. Otherwise, modem side may still wait for more data and
cannot give response to host side.

Signed-off-by: Konrad Leszczynski <konrad.leszczynski@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Lu Baolu 2016-01-06 15:10:04 +08:00 • committed by Greg Kroah-Hartman

parent 858e9d4a22

commit dde53ae3ad

2 changed files with 7 additions and 0 deletions

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6

drivers/usb/class/cdc-acm.c

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1

drivers/usb/class/cdc-acm.h

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