From: Joan Pau Beltran <joanpau.beltran-i5CWTa81U/w@public.gmane.org>
To: Giampaolo Bellini
<iw2lsi-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: pca953x GPIO
Date: Fri, 24 Dec 2010 17:14:09 +0100 [thread overview]
Message-ID: <4D14C6D1.3030802@uib.cat> (raw)
In-Reply-To: <AANLkTi=LQ56S43=BL8tdo=MakP-PRzVK0ieJM07y_O_1-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Thank you very much Giampolo
(and funny to see that my name is the same than yours, but in Catalan)
From your notes:
> mknod /dev/i2c-0 c 89 0
> modprobe i2c-dev
> i2cdetect -l
>>>> i2c-0 smbus SMBus I801 adapter at 0400 SMBus adapter
> i2cget 0 0x20
I see that you can access the chip. I will test it on monday or tuesday.
Do you know if we can access the N'th pin on the chip with 'i2cget 0
0x20 N' (N in 0..7)?
And do you know if we can access these pins directly from a C program (I
mean without using a system call) ?
Thanks again for your responses!
next prev parent reply other threads:[~2010-12-24 16:14 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-17 17:21 pca953x GPIO Joan Pau Beltran
[not found] ` <4D0B9C35.5000802-i5CWTa81U/w@public.gmane.org>
2010-12-17 18:23 ` Jean Delvare
[not found] ` <AANLkTi=LQ56S43=BL8tdo=MakP-PRzVK0ieJM07y_O_1@mail.gmail.com>
[not found] ` <AANLkTi=LQ56S43=BL8tdo=MakP-PRzVK0ieJM07y_O_1-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-12-24 16:14 ` Joan Pau Beltran [this message]
[not found] ` <AANLkTinSuVYAVQqPHRtrnTPrtEZA1aCHOb6X4H8u2OW1@mail.gmail.com>
[not found] ` <AANLkTinSuVYAVQqPHRtrnTPrtEZA1aCHOb6X4H8u2OW1-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-12-28 16:04 ` Joan Pau Beltran
[not found] ` <4D1A0A95.7020408-i5CWTa81U/w@public.gmane.org>
2011-01-06 15:22 ` Jean Delvare
[not found] ` <20110106162213.4e5ee5b4@endymion.del vare>
[not found] ` <20110106162213.4e5ee5b4-R0o5gVi9kd4wFzbXFV0ICA@public.gmane.org vare>
2011-01-07 17:34 ` Joan Pau Beltran
[not found] ` <4D274E8B.8050600-i5CWTa81U/w@public.gmane.org>
2011-12-21 17:02 ` Joan Pau Beltran
-- strict thread matches above, loose matches on Subject: below --
2010-12-24 16:15 Joan Pau Beltran
[not found] ` <4D14C735.8-i5CWTa81U/w@public.gmane.org>
2011-01-06 16:19 ` Jean Delvare
2010-06-23 12:02 Giampaolo Bellini
[not found] ` <AANLkTik5ICmrrsX0m9qzPr7TzF44HKIr5FMC4eKeGkzZ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-06-24 9:49 ` Jean Delvare
[not found] ` <20100624114937.23bb3efc-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2010-06-24 17:49 ` Giampaolo Bellini
[not found] ` <AANLkTikhwn0l3nK-a-4TfP-mHcJxwvw7bxe2mKyya61A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-06-24 19:01 ` Jean Delvare
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