From: Brendan Le Foll Date: Fri, 7 Nov 2014 15:05:23 +0000 (+0000) Subject: galileorevh.md: add i2c frequency info X-Git-Tag: v0.5.3~63 X-Git-Url: http://review.tizen.org/git/?p=contrib%2Fmraa.git;a=commitdiff_plain;h=fdb11d98ea4c362bf56a5a1179893ad6ad8bd71a galileorevh.md: add i2c frequency info Signed-off-by: Brendan Le Foll --- diff --git a/docs/galileorevh.md b/docs/galileorevh.md index a9b3272..0f896bb 100644 --- a/docs/galileorevh.md +++ b/docs/galileorevh.md @@ -6,8 +6,11 @@ Application Processor, a 32-bit Intel Pentium-class system on a chip. The Gen 2 board has the following limitations in libmraa: -- i2c is set at 400Khz speed cannot be changed without reloading kernel module -- i2c bus is shared with multiple devices, scanning it usually fails +- i2c is set at 400Khz speed cannot be changed without reloading kernel module, + the driver is intel_qrk_gip_i2c and the parameter is i2c_std_mode which must + be set to 1 in order to set the i2c bus speed to 100Khz +- i2c bus is shared with multiple devices in kernel space, scanning it usually + fails - pwm period is set globally for all pwm channels, when changed this will halt all pwm channels - adc kernel module will return 12bit number but the ADC itself only has an