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Re: [Qemu-devel] [PATCH] SecureDigital card emulation.

From: Paul Brook
Subject: Re: [Qemu-devel] [PATCH] SecureDigital card emulation.
Date: Sat, 17 Mar 2007 10:29:18 +0000
User-agent: KMail/1.9.5

On Friday 16 March 2007 20:59, andrzej zaborowski wrote:
> Emulates an SD card with the full command set (no SPI mode though).
> Should be more or less compliant with version 1.10 specification.

I suspect your code only works on x86. Specifically things like:

> +struct sd_response_r1_s {
> +    uint8_t cmd;
> +    uint32_t status;
> +    uint8_t crc;
> +};

Will be a 12-byte struct on many hosts, and probably also breaks on big-endian 
hosts. AFAICS there's no way for the caller of sd_write_cmdline to figure out 
what type of response is returned (other than the length), so has to rely on 
doing a bitwise copy.


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