lkml.org 
[lkml]   [2009]   [Apr]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] go7007: Convert to the new i2c device binding model
Jean Delvare wrote:
> I am puzzled by the s2250 I2C address, 0x86 really doesn't fit in
> 7 bits, there must be something wrong.

> - .addr = 0x34,
> + .addr = 0x86, /* ?? */

> -#define S2250_VIDDEC 0x86

Many I2C controllers use an 8-bit address register, with the lowest bit
being the read/write bit (because this is the order in which the bits
are transmitted over the bus). So it looks as if the actual address
_is_ 0x34; the S2250_VIDDEC symbol is probably a relict of the old
driver that programmed the I2C controller directly.


Best regards,
Clemens


\
 
 \ /
  Last update: 2009-04-21 09:41    [W:0.121 / U:0.036 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site