usb: cdc-acm: send ZLP for Telit 3G Intel based modems

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commit 34aabf9187 upstream.

Telit 3G Intel based modems require zero packet to be sent if
out data size is equal to the endpoint max packet size.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Daniele Palmas 2018-12-28 16:15:41 +01:00 • committed by Ben Hutchings

parent f2e39fa441

commit 30da1606a4

1 changed files with 7 additions and 0 deletions

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drivers/usb/class/cdc-acm.c

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