From: amit mahadik <amitmaddy@gmail.com>
To: linux-mmc@vger.kernel.org
Subject: How to print CMD18 read data
Date: Wed, 1 Feb 2017 12:53:40 +0530 [thread overview]
Message-ID: <CAMGZvfKXGwmrOSD-z_4F5aM5S7TPENmPkLKQ3ArQxJ+rEruhtg@mail.gmail.com> (raw)
Hello,
I want to interface MMC card via SPI bus. However, I am
getting CRC errors for CMD18. I tried reading partition table using
CMD17 but still get errors.
The same SDMMC card gets detected using SD interface. I want to
compare the data of CMD18/CMD17 of SD and SPI modes. Please let me
know how can I print the read data of the said commands in the block
layer?
I tried using the following code but it didn't help
sg_copy_to_buffer(brq->data.sg, brq->data.sg_len, buf, 4096); and printed buf.
Regards,
Amit.
next reply other threads:[~2017-02-01 7:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170201072351epcas2p4b40fc91e204153ce57d510622ab021cc@epcas2p4.samsung.com>
2017-02-01 7:23 ` amit mahadik [this message]
2017-02-01 8:08 ` How to print CMD18 read data Jaehoon Chung
2017-02-01 8:48 ` amit mahadik
2017-02-01 11:43 ` Jaehoon Chung
2017-02-01 12:16 ` amit mahadik
2017-02-01 18:00 ` David Haworth
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