As Stephen Hellriegel pointed out in

As Stephen Hellriegel pointed out in
https://lists.berlios.de/pipermail/socketcan-users/2010-April/001378.html
it does not make sense to monitor the tx data flow in the slcan driver as
we do not know anything about the CAN specific problems that may occur in the
slcan device.

Therefore we just wait until the ASCII data is sent on the serial line without
having a separate timeout handler in the slcan driver.

git-svn-id: svn://svn.berlios.de//socketcan/trunk@1168 030b6a49-0b11-0410-94ab-b0dab22257f2