if (vblank - prev > 16966 || vblank - prev < 16366) /* +0.3 ~ -0.3 ms */
printf("vblank : %d us\n", vblank - prev);
- if (client - vblank > 3000) /* 3ms */
+ if (client - vblank > 2000) /* 2ms */
printf("kernel -> tdm-client: %d us\n", client - vblank);
prev = vblank;