diff options
Diffstat (limited to 'drivers/pps/generators/pps_gen_parport.c')
| -rw-r--r-- | drivers/pps/generators/pps_gen_parport.c | 42 |
1 files changed, 7 insertions, 35 deletions
diff --git a/drivers/pps/generators/pps_gen_parport.c b/drivers/pps/generators/pps_gen_parport.c index 6a1af7664f3b..b3e084b75c23 100644 --- a/drivers/pps/generators/pps_gen_parport.c +++ b/drivers/pps/generators/pps_gen_parport.c @@ -20,8 +20,6 @@ #include <linux/hrtimer.h> #include <linux/parport.h> -#define DRVDESC "parallel port PPS signal generator" - #define SIGNAL 0 #define NO_SIGNAL PARPORT_CONTROL_STROBE @@ -180,6 +178,11 @@ static void parport_attach(struct parport *port) { struct pardev_cb pps_cb; + if (send_delay > SEND_DELAY_MAX) { + pr_err("delay value should be not greater then %d\n", SEND_DELAY_MAX); + return; + } + if (attached) { /* we already have a port */ return; @@ -231,39 +234,8 @@ static struct parport_driver pps_gen_parport_driver = { .detach = parport_detach, .devmodel = true, }; - -/* module staff */ - -static int __init pps_gen_parport_init(void) -{ - int ret; - - pr_info(DRVDESC "\n"); - - if (send_delay > SEND_DELAY_MAX) { - pr_err("delay value should be not greater" - " then %d\n", SEND_DELAY_MAX); - return -EINVAL; - } - - ret = parport_register_driver(&pps_gen_parport_driver); - if (ret) { - pr_err("unable to register with parport\n"); - return ret; - } - - return 0; -} - -static void __exit pps_gen_parport_exit(void) -{ - parport_unregister_driver(&pps_gen_parport_driver); - pr_info("hrtimer avg error is %ldns\n", hrtimer_error); -} - -module_init(pps_gen_parport_init); -module_exit(pps_gen_parport_exit); +module_parport_driver(pps_gen_parport_driver); MODULE_AUTHOR("Alexander Gordeev <lasaine@lvk.cs.msu.su>"); -MODULE_DESCRIPTION(DRVDESC); +MODULE_DESCRIPTION("parallel port PPS signal generator"); MODULE_LICENSE("GPL"); |