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From: Antony Pavlov <antonynpavlov@gmail.com>
To: barebox <barebox@lists.infradead.org>
Subject: serial_ns16550 driver question
Date: Wed, 20 Jul 2011 23:51:04 +0400	[thread overview]
Message-ID: <CAA4bVAGTD7BQxa-wh=i8iiZX33aQOR3g1O5o7_G6XQkYCgShnw@mail.gmail.com> (raw)

Hi!

In include/ns16550.h we have:

struct NS16550_plat {
        unsigned int clock;
        unsigned char f_caps;
        /**
         * register read access capability
         */
        unsigned int (*reg_read) (unsigned long base, unsigned char reg_offset);
        /**
         * register write access capability
         */
        void (*reg_write) (unsigned int val, unsigned long base,
                                    unsigned char reg_offset);
};

Why reg_read and reg_write's argument base has type unsigned long?
IMHO pointer type (void * or char *)  is more natural.

-- 
Best regards,
  Antony Pavlov

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             reply	other threads:[~2011-07-20 19:51 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-20 19:51 Antony Pavlov [this message]
2011-07-20 20:31 ` Sascha Hauer
2011-07-21  3:12   ` Jean-Christophe PLAGNIOL-VILLARD
2011-07-21  6:28     ` Sascha Hauer
2011-07-21  8:34       ` Juergen Beisert

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