Hi Richard,

On Tue, Feb 14, 2017 at 09:42:26AM +0100, Richard Cochran wrote:
> On Mon, Feb 13, 2017 at 07:51:07PM -0800, Dmitry Torokhov wrote:
> > Instead of creating selected attributes after the device is created (and
> > after userspace potentially seen uevent), lets use attribute group
> > is_visible() method to control which attributes are shown. This will allow
> > us to create all attributes (except "pins" group, which will be taken care
> > of later) before userspace gets notified about new ptp class device.
> 
> At first glance, this patch and the next look like nice improvements.
> I don't futz around with sysfs code very often, and so may I ask how
> or whether you tested it?

I used the hack below.

Thanks.

-- 
Dmitry

PTP Test

Signed-off-by: Dmitry Torokhov <dmitry.torok...@gmail.com>
---
 drivers/net/ethernet/intel/e1000e/ptp.c |   13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/ptp.c 
b/drivers/net/ethernet/intel/e1000e/ptp.c
index 34cc3be0df8e..3b4c0d3e4093 100644
--- a/drivers/net/ethernet/intel/e1000e/ptp.c
+++ b/drivers/net/ethernet/intel/e1000e/ptp.c
@@ -260,18 +260,27 @@ static void e1000e_systim_overflow_work(struct 
work_struct *work)
                              E1000_SYSTIM_OVERFLOW_PERIOD);
 }
 
+static struct ptp_pin_desc e1000e_ptp_pin_config[1] = {
+       {
+               .name = "TestPin1",
+               .index = 0,
+               .func = PTP_PF_NONE,
+       }
+};
+
 static const struct ptp_clock_info e1000e_ptp_clock_info = {
        .owner          = THIS_MODULE,
        .n_alarm        = 0,
        .n_ext_ts       = 0,
-       .n_per_out      = 0,
-       .n_pins         = 0,
+       .n_per_out      = 1,
+       .n_pins         = 1,
        .pps            = 0,
        .adjfreq        = e1000e_phc_adjfreq,
        .adjtime        = e1000e_phc_adjtime,
        .gettime64      = e1000e_phc_gettime,
        .settime64      = e1000e_phc_settime,
        .enable         = e1000e_phc_enable,
+       .pin_config     = e1000e_ptp_pin_config,
 };
 
 /**

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