[lkml]   [2018]   [Feb]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v2] iio: accel: bmc150: Check for a second ACPI device for BOSC0200
On Sun, Feb 4, 2018 at 7:58 PM, Steven Presser <> wrote:

> I had a chance to sit back down with the machine. I didn't take it all the
> way apart - there are pieces that I'm afraid of breaking without directions
> on how to properly disassemble them.

No need I think to go so-o deep.

> However, I did recover an exact chip ID - the chips in use are BMA255s [1].
> Rather than take the machine apart (and because the chips are 2mmx2mm), I
> queried the chip over SMBus. On page 50 of the below document, you can see
> that register 0x00 is a read-only chip ID. This chipID is unique per Bosch
> product. So, using SMBus, I asked the chip for it's chip ID (0xFA, in this
> case) and then searched likely products until I found the matching chipID.


> Does this suffice to settle which chips are in use? If not, I can finish
> taking the machine apart, I'd just prefer to avoid the risk of breaking
> something.

I think it's pretty much enough.

> As soon as I finish screwing everything back together, I'll grab the other
> software IDs asked for and build the branch referenced elsewhere.

I'm just waiting for your Tested-by in case my patch series works as
expected before I send it out.

With Best Regards,
Andy Shevchenko

 \ /
  Last update: 2018-02-06 20:48    [W:0.101 / U:0.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site