1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun# 3*4882a593Smuzhiyun# PPS generators configuration 4*4882a593Smuzhiyun# 5*4882a593Smuzhiyun 6*4882a593Smuzhiyuncomment "PPS generators support" 7*4882a593Smuzhiyun 8*4882a593Smuzhiyunconfig PPS_GENERATOR_PARPORT 9*4882a593Smuzhiyun tristate "Parallel port PPS signal generator" 10*4882a593Smuzhiyun depends on PARPORT && BROKEN 11*4882a593Smuzhiyun help 12*4882a593Smuzhiyun If you say yes here you get support for a PPS signal generator which 13*4882a593Smuzhiyun utilizes STROBE pin of a parallel port to send PPS signals. It uses 14*4882a593Smuzhiyun parport abstraction layer and hrtimers to precisely control the signal. 15