lkml.org 
[lkml]   [2012]   [Aug]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: i2c-eg20t: regression since i2c_add_numbered_adapter change
Date
On Thursday 30 August 2012 17:19:15, Feng Tang wrote:
> > IMO the i2c_register_board_info only works in quite static setups. Especially with I2C-Busses attached to hotplugable PCI devices this way doesn't work reliable any more.
> > The device come and go dynamically so you can't assume fixed mapping.
>
> Can you specify the hotplugable?
> 1. A hotplugable i2c bus controller (say i2c_eg20t) with all fixed i2c
> devices connecting to it
> 2. i2c bus controller is fixed, while the i2c devices will be dynamically
> connected to it.
> 3. Both the bus controller and devices are dynamically hotplugged

I had scenario 1 in mind, but with more than 1 bus controller (say 2x i2c_eg20t). How can you set a fixed numbering if there are more controllers, each with maybe more than 1 bus?
Anyway, how can you provide a static bus numbering if there are more than one driver or more than one device per driver if the devices are hotplugable?

Best regards,
Alexander



\
 
 \ /
  Last update: 2012-08-30 13:41    [W:0.062 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site