Re: i2c-dev
On Thu, Oct 23, 2014 at 08:15:53PM +0200, Paul Bolle wrote: I'm afraid I can't really help you here, sorry. That is, except for the obvious question whether this is a regression (ie, do releases v3.17 or earlier show something in /sys/bus/i2c/devices/?) or a configuration issue (perhaps a distribution provided kernel does show what you want). I didn't have any devices drivers loaded for things that had i2c devices. I loaded the i915 gpu driver and now I see stuff. root@vega:/home/john/linux# i2cdetect -l i2c-0 i2c i915 gmbus ssc I2C adapter i2c-1 i2c i915 gmbus vga I2C adapter i2c-2 i2c i915 gmbus panelI2C adapter i2c-3 i2c i915 gmbus dpc I2C adapter i2c-4 i2c i915 gmbus dpb I2C adapter i2c-5 i2c i915 gmbus dpd I2C adapter i2c-6 i2c DPDDC-B I2C adapter ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: i2c-dev
On Wed, 2014-10-22 at 13:27 -0400, John de la Garza wrote: On Wed, Oct 22, 2014 at 06:35:02PM +0200, Paul Bolle wrote: Having looked into this a bit, but failing to come up with something helpful, I decided to ask some additional info. On Tue, 2014-10-21 at 21:54 -0400, John de la Garza wrote: I have my kernel Which version (roughly)? Linux vega 3.18.0-rc1+ #71 SMP Wed Oct 22 00:49:21 EDT 2014 x86_64 GNU/Linux built with dev-i2c and i2c_i801 .config, please? see below but do not have a /dev entry. lspci shows this: 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06) What are the PCI vendor and device codes? See lspci -nn. 00:1f.3 SMBus [0c05]: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller [8086:3b30] (rev 06) dmesg shows this: [1.566003] i801_smbus :00:1f.3: enabling device ( - 0003) I'm afraid I can't really help you here, sorry. That is, except for the obvious question whether this is a regression (ie, do releases v3.17 or earlier show something in /sys/bus/i2c/devices/?) or a configuration issue (perhaps a distribution provided kernel does show what you want). Hope this helps, Paul Bolle ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: i2c-dev
Having looked into this a bit, but failing to come up with something helpful, I decided to ask some additional info. On Tue, 2014-10-21 at 21:54 -0400, John de la Garza wrote: I have my kernel Which version (roughly)? built with dev-i2c and i2c_i801 .config, please? but do not have a /dev entry. lspci shows this: 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06) What are the PCI vendor and device codes? See lspci -nn. dmesg shows this: [1.566003] i801_smbus :00:1f.3: enabling device ( - 0003) ls /sys/bus/i2c/devices/ shows nothing... on running this on a MacBookPro6,2 What am I missing? Shouldn't I see a i2c device? I think SMBus is a subset of i2c and I should be able to use that subset, right? Paul Bolle ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
i2c-dev
I have my kernel built with dev-i2c and i2c_i801 but do not have a /dev entry. lspci shows this: 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06) dmesg shows this: [1.566003] i801_smbus :00:1f.3: enabling device ( - 0003) ls /sys/bus/i2c/devices/ shows nothing... on running this on a MacBookPro6,2 What am I missing? Shouldn't I see a i2c device? I think SMBus is a subset of i2c and I should be able to use that subset, right? ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
