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Date: Tue, 30 Jul 2013 16:12:30 +0300 From: Dan Carpenter <dan.carpenter@...cle.com> To: Rupesh Gujare <rupesh.gujare@...el.com> Cc: devel@...uxdriverproject.org, gregkh@...uxfoundation.org, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] staging: ozwpan: High resolution timers On Tue, Jul 30, 2013 at 01:31:50PM +0100, Rupesh Gujare wrote: > Current implementation assumes HZ = 1000 for calculating > all internal timer intervals, which creates problem on > platforms where HZ != 1000. > > As well we need resolution of less than 10 mSec for heartbeat > calculation, this creates problem on some platforms where HZ is > configured as HZ = 100, or around, which restricts us to timer interval > of 10 mSec. This is particularly found on embedded devices. > > This patch moves on to use high resolution timers to calculate > all timer intervals as it allows us to have very small resolution > of timer interval, removing dependency on HZ. > I am new to this driver. So we batch all the transfers together and send/recieve them in oz_hcd_heartbeat() every 10msec? It's a polling interface? Sorry, if I am completely mis-reading what this driver is doing. In other words, could you explain what oz_hcd_heartbeat() does. regards, dan carpenter -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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