Re: [PATCH 3/7] rtc: Convert struct i2c_msg initialization to C99 format

[Ryan Mallon]

On 17/09/12 23:58, Shubhrajyoti D wrote:
>     Convert the struct i2c_msg initialization to C99 format. This makes
>     maintaining and editing the code simpler. Also helps once other fields
>     like transferred are added in future.
> 
> Signed-off-by: Shubhrajyoti D <shubhrajy...@ti.com>
> ---
>  drivers/rtc/rtc-isl1208.c |    6 +++---
>  1 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
> index dd2aeee..c3a76ae 100644
> --- a/drivers/rtc/rtc-isl1208.c
> +++ b/drivers/rtc/rtc-isl1208.c
> @@ -68,9 +68,9 @@ isl1208_i2c_read_regs(struct i2c_client *client, u8 reg, u8 
> buf[],
>  {
>       u8 reg_addr[1] = { reg };
>       struct i2c_msg msgs[2] = {
> -             {client->addr, 0, sizeof(reg_addr), reg_addr}
> +             {.addr = client->addr, .flags = 0, .len = sizeof(reg_addr), 
> .buf = reg_addr}

Actually, I wonder if it is useful to have something like:

        #define I2C_WRITE(_addr, _buf, _len) {  \
                .addr   = _addr,                \
                .buf    = _buf,                 \
                .len    = _len,                 \
        }

        #define I2C_READ(_addr, _buf, _len) {   \
                .addr   = _addr,                \
                .buf    = _buf,                 \
                .len    = _len,                 \
                .flags  = I2C_M_RD,             \
        }

and then write this as:

        struct i2c_msg msgs[2] = {
                I2C_WRITE(client->addr, reg_addr, sizeof(reg_addr)),
                I2C_READ(client->addr, buf, len),
        };

~Ryan




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