Bastian Hecht wrote: > > I enabled isr debugging (#define ISP_ISR_DEBUG) and see that only 1 > HS_VS_event is generated per second. 1fps corresponds to my clocking, > so 1 vs per second is fine. But shouldn't I see about 2000 hs > interrupts there too? HS_VS_IRQ is described as "HS or VS synchro > event". HS_VS_IRQ is _either_ VS _or_ HS interrupts, but not both. The SYNC_DETECT bits in ISP_CTRL determines which. For writing into memory, the ISP only needs to react per frame, not per line, so it is set up to trigger on VS. -- Michael Jones MATRIX VISION GmbH, Talstrasse 16, DE-71570 Oppenweiler Registergericht: Amtsgericht Stuttgart, HRB 271090 Geschaeftsfuehrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html