USB: symbolserial: Correct transferred data size

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[ Upstream commit 8ae25a355b ]

The scanner (here DS3508) always returns 64 bytes per urb buffer. The first
byte indicates the data length used in the current buffer. There even was
a comment describing this. But the comment also said that we'll send
everything in the buffer to the tty layer. That means sending the actual
barcode data and lots of trailing zeroes. This patch lets the driver only
send the real data.

Signed-off-by: Philipp Hachtmann <hachti@hachti.de>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

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Philipp Hachtmann 2015-08-17 17:31:47 +02:00 • committed by Sasha Levin

parent 0fa94e0111

commit 44b87b60a3

1 changed files with 8 additions and 10 deletions

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18

drivers/usb/serial/symbolserial.c

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