Hello everybody !
I'm trying to write an audio driver for an audio chip controlled by the I2C bus...
My problem is that I don't have anything related to my audio chip in the /dev/ (audio, dsp, mixer...) directory... and I need it to implement mi ioctl function.
the other problem, is that I don't know how to use the i2c in kernel space...
I know I have to use i2c_master_send() but I d'ont know how to open the I2C and get the appropriate i2c_client structure...
anyone have an idea ?
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December 2009, #188
If last month's Infrastrucuture issue was too "big" for you then try on this month's Embedded issue. Find out how to use Player for programming mobile robots, build a humidity controller for your root cellar, find out how to reduce the boot time of your embedded system, and if you're new to embedded systems find out the basics that go into one. You can also read about the Beagle Board, the Mesh Potato and a spate of other interestingly named items. And along with our regular columns don't miss our new monthly column: Economy Size Geek.
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