MXR_BIT_POWERED
set_bit(MXR_BIT_POWERED, &ctx->flags);
if (!test_bit(MXR_BIT_POWERED, &ctx->flags))
clear_bit(MXR_BIT_POWERED, &ctx->flags);
if (!test_bit(MXR_BIT_POWERED, &mixer_ctx->flags))
if (!test_bit(MXR_BIT_POWERED, &mixer_ctx->flags))
if (!test_bit(MXR_BIT_POWERED, &ctx->flags))
if (!test_bit(MXR_BIT_POWERED, &mixer_ctx->flags))
if (!test_bit(MXR_BIT_POWERED, &mixer_ctx->flags))
if (!test_bit(MXR_BIT_POWERED, &mixer_ctx->flags))
if (test_bit(MXR_BIT_POWERED, &ctx->flags))