Hi All. I wrote SPI bitbang master over GPIO of saa7134. Speed of writing is much slow then in a Windows systems. I make some tests:
Windows, SPI bitbang 97002 bytes x 2 time of writing is around 1.2 seconds Linux, SPI bitbang with call saa7134_set_gpio time of writing is 18 seconds Linux, SPI bitbang without call saa7134_set_gpio time of writing is 0.25seconds. The overhead of SPI subsystem is 0.25 seconds. Writing speed to registers of the saa7134 tooooo slooooow. What you think about it? With my best regards, Dmitry. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
