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From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox <barebox@lists.infradead.org>
Subject: Re: Howto known uncompressed length when uncompress_fd_to_buf
Date: Mon, 3 Dec 2012 10:55:34 +0100	[thread overview]
Message-ID: <20121203095534.GL10369@pengutronix.de> (raw)
In-Reply-To: <20121130110336.GB7099@greatfirst.com>

On Fri, Nov 30, 2012 at 07:03:36PM +0800, 张忠山 wrote:
> the function uncompress_fd_to_buf has no parameter to return
> the uncompressed length, How to get the uncompressed content
> length?

AFAIK the uncompressed size is not contained in the compressed data 
You would have to uncompress to a file and use this afterwards.
If I understand correctly you want to load a FPGA firmware which you
have in compressed form. What I would do is:

- uncompress the firmware in a script rather than uncompress it from
  C code.
- write a command to flash the firmware.

Sascha

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  reply	other threads:[~2012-12-03  9:55 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-30 11:03 张忠山
2012-12-03  9:55 ` Sascha Hauer [this message]
2012-12-04  1:42   ` 张忠山
2012-12-04  7:44     ` Sascha Hauer
2012-12-04  8:09       ` 张忠山
2012-12-04 23:13         ` Sascha Hauer

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