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Message-ID: <BANLkTi=yaXOWnUi2s1A-BtoAFgjExX8q4w@mail.gmail.com> Date: Mon, 18 Apr 2011 09:57:52 -0400 From: Mike Frysinger <vapier.adi@...il.com> To: Alexander Holler <holler@...oftware.de> Cc: linux-kernel@...r.kernel.org Subject: Re: [PATCH 0/1] Implement /dev/byte (a generic byte source similiar to /dev/zero) On Mon, Apr 18, 2011 at 07:37, Alexander Holler wrote: > I don't know if this patch qualifies for inclusion into the mainline kernel, but > maybe someone else would be interested in such, so I'm posting it here. > > The main idea for that device was to have a source for 0xff to clear FLASH based > devices. And to make it more generic, I've added the possibility to change the > default value on a per file descriptor basis. > > I don't want to discuss if such a device makes sense or if such should be done > in userspace only. I like it as a device, otherwise I wouldn't have written it. > So besides this message, I will not take part in such a discussion. cant you do this with cuse ? that would satisfy the "has to be a device" requirement while keeping it in userspace. although, i have a hard time seeing there be a realistic perf diff with: tr '\000' '\377' < /dev/zero | dd ...... -mike -- 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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