diff options
Diffstat (limited to 'drivers/media/video/uvc/uvc_driver.c')
| -rw-r--r-- | drivers/media/video/uvc/uvc_driver.c | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c index 391cccc..05ac277 100644 --- a/drivers/media/video/uvc/uvc_driver.c +++ b/drivers/media/video/uvc/uvc_driver.c @@ -43,6 +43,7 @@ #define DRIVER_VERSION "v0.1.0" #endif +unsigned int uvc_clock_param = CLOCK_MONOTONIC; unsigned int uvc_no_drop_param; static unsigned int uvc_quirks_param; unsigned int uvc_trace_param; @@ -1892,6 +1893,45 @@ static int uvc_reset_resume(struct usb_interface *intf) } /* ------------------------------------------------------------------------ + * Module parameters + */ + +static int uvc_clock_param_get(char *buffer, struct kernel_param *kp) +{ + if (uvc_clock_param == CLOCK_MONOTONIC) + return sprintf(buffer, "CLOCK_MONOTONIC"); + else + return sprintf(buffer, "CLOCK_REALTIME"); +} + +static int uvc_clock_param_set(const char *val, struct kernel_param *kp) +{ + if (strncasecmp(val, "clock_", strlen("clock_")) == 0) + val += strlen("clock_"); + + if (strcasecmp(val, "monotonic") == 0) + uvc_clock_param = CLOCK_MONOTONIC; + else if (strcasecmp(val, "realtime") == 0) + uvc_clock_param = CLOCK_REALTIME; + else + return -EINVAL; + + return 0; +} + +module_param_call(clock, uvc_clock_param_set, uvc_clock_param_get, + &uvc_clock_param, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(clock, "Video buffers timestamp clock"); +module_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(nodrop, "Don't drop incomplete frames"); +module_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(quirks, "Forced device quirks"); +module_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(trace, "Trace level bitmask"); +module_param_named(timeout, uvc_timeout_param, uint, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(timeout, "Streaming control requests timeout"); + +/* ------------------------------------------------------------------------ * Driver initialization and cleanup */ @@ -2197,15 +2237,6 @@ static void __exit uvc_cleanup(void) module_init(uvc_init); module_exit(uvc_cleanup); -module_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(nodrop, "Don't drop incomplete frames"); -module_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(quirks, "Forced device quirks"); -module_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(trace, "Trace level bitmask"); -module_param_named(timeout, uvc_timeout_param, uint, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(timeout, "Streaming control requests timeout"); - MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); |