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ftdi: make ftdi_location command depend on libusb1 version

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The function libusb_get_port_numbers(), required for the command
ftdi_location, is only available in recent version of libusb1.
Compilation will break if the function is not available. This patch
enables the command only if libusb1 contains the necessary function.

Change-Id: I091e72dafa4ed22eea51692751d43246a8152987
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3396
Tested-by: jenkins
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
This commit is contained in:
Matthias Welwarsky
2016-04-06 10:35:13 +02:00
committed by Freddie Chopin
parent 18a6fdc154
commit 414e4eb40e
4 changed files with 11 additions and 1 deletions
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doc/openocd.texi
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@@ -2564,6 +2564,8 @@ roots at @var{bus} and walks down the physical ports, with each
@var{port} option specifying a deeper level in the bus topology, the last
@var{port} denoting where the target adapter is actually plugged.
The USB bus topology can be queried with the command @emph{lsusb -t}.
This command is only available if your libusb1 is at least version 1.0.16.
@end deffn
@deffn {Config Command} {ftdi_channel} channel