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Re: [PATCH 4/5] mtd: block2mtd: Add support for deleting block2mtd mapping

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  Re: [PATCH 4/5] mtd: block2mtd: Add support for deleting block2mtd  mapping Richard Weinberger <richard@nod.at> - 2017-08-06 11:40 +0200

#1704799 — Re: [PATCH 4/5] mtd: block2mtd: Add support for deleting block2mtd mapping

Pali,

Am 25.07.2017 um 16:24 schrieb Pali Rohár:
> On Friday 21 July 2017 21:56:41 Richard Weinberger wrote:
>> Pali,
>>
>> On Fri, Jun 2, 2017 at 5:43 PM, Pali Rohár <pali.rohar@gmail.com> wrote:
>>> This patch allows user to delete block2mtd mapping via parameters file
>>> /sys/module/block2mtd/parameters/block2mtd
>>>
>>> Syntax is "del=device", e.g.:
>>>
>>> $ echo -n del=/dev/loop0 > /sys/module/block2mtd/parameters/block2mtd
>>
>> As I wrote in an earlier mail, I hate this interface.
>> I suggest adding a decent ioctl based interface for dynamic block2mtd's.
> 
> ioctl interface has a problem that cannot be easily used from shell. It
> needs to have another tool which uses it. On the other hand sysfs
> interface can be used from bash script which is better.
> 
> Any idea for better interface without need for ioctl?

No, please use ioctl and add a proper tool to mtd-utils.
in MTD we use ioctl for all non-trivial interfaces. :-)

Thanks,
//richard

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