Re: Touchscreen chip is not an ADS 7846

i also wanna have some nightly builds :-)

Michael O'Hare wrote:
> I second this, as I haven't a machine to compile it with myself.
>
> On Jan 28, 2007, at 11:04 PM, nick_at_amicro.biz wrote:
>
>> Pierre,
>>
>>
>> will you please post the latest build on your site. i am itching to try
>> but i have no dev env or knowledge on my end.
>>
>> thank you,
>>
>> nick
>>
>>
>> -----Original Message-----
>> From: "Pierre GAUFILLET" <pierre.gaufillet_at_magic.fr>
>> Sent: Sunday, January 28, 2007 2:54 pm
>> To: "The porting effort for the Dell Axim x50"
>> <aximx50-port_at_handhelds.org>
>> Subject: Re: [Aximx50-port] Touchscreen chip is not an ADS 7846
>>
>> Hi,
>>
>> the touchscreen is now working (probably for X50 and for sure for X51).
>> I will post a first patch soon.
>> I still have to define the coordinates transformation.
>>
>> Paul : I see you committed a new 7846 device-independent driver. Should
>> I use this one from now ?
>>
>> Could you please commit the following modification to
>> include/asm-arm/arch-pxa/memory.h ?
>>
>> #ifdef CONFIG_DRAM_BASE
>> #define PHYS_OFFSET (CONFIG_DRAM_BASE)
>> #else
>> #define PHYS_OFFSET UL(0xa0000000)
>> #endif
>>
>> For Axim X50/X51(v), the current kernel can not be used without a manual
>> modification...
>>
>> Pierre
>>>
>>> ----- Original Message -----
>>> From: Paul Sokolovsky <pmiscml_at_gmail.com>
>>> Date: Thursday, January 25, 2007 5:44 pm
>>> Subject: Re: [Aximx50-port] Re: Touchscreen chip is not an ADS 7846
>>>
>>>
>>>> Hello Kelvin,
>>>>
>>>> Friday, January 26, 2007, 2:19:37 AM, you wrote:
>>>>
>>>>
>>>>> TexasInstument ADS7846 and TSC2046 use the same driver!!!
>>>>>
>>>> Well, to be exact, these chips seem to be largely compatible. But
>>>> devices with them seem to use different settings, at least. And
>>>> unfortunately, we still don't have some machine-independent
>>>> touchscreen driver which can be easily reused in different
>>>> machines ;-((.
>>>>
>>>> Either way, you should take one of the existing drivers for this or
>>>> that chip, and tweak it to work on aximx50. The amount of tweaks
>>>> should be small (assuming you know exact config to use for TS chip).
>>>> For ADS7846, I suggest h4000_ts. For TSC2046, all devices seem to just
>>>> cut&paste hx4700's driver. Important note: please take *current*
>>>> versions of the base driver. If there's older driver known to work for
>>>> aximx50, that's good reference for chip config, but bad for actual
>>>> code (as drivers on which it as based are likely changes since then).
>>>>
>>>>
>>>>> http://www.handhelds.org/hypermail/hx4700-port/20/2034.html
>>>>>
>>>>
>>>> --
>>>> Best regards,
>>>> Paul mailto:pmiscml_at_gmail.com
>>>>
>>>>
>>>>
>>
>> --
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>>
>>
>>
>>
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Received on Mon Jan 29 2007 - 03:58:51 EST