diff options
Diffstat (limited to 'Documentation/hid/intel-ish-hid.rst')
| -rw-r--r-- | Documentation/hid/intel-ish-hid.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/hid/intel-ish-hid.rst b/Documentation/hid/intel-ish-hid.rst index 7a851252267a..42dc77b7b10f 100644 --- a/Documentation/hid/intel-ish-hid.rst +++ b/Documentation/hid/intel-ish-hid.rst @@ -199,7 +199,7 @@ the sender that the memory region for that message may be reused. DMA initialization is started with host sending DMA_ALLOC_NOTIFY bus message (that includes RX buffer) and FW responds with DMA_ALLOC_NOTIFY_ACK. Additionally to DMA address communication, this sequence checks capabilities: -if thw host doesn't support DMA, then it won't send DMA allocation, so FW can't +if the host doesn't support DMA, then it won't send DMA allocation, so FW can't send DMA; if FW doesn't support DMA then it won't respond with DMA_ALLOC_NOTIFY_ACK, in which case host will not use DMA transfers. Here ISH acts as busmaster DMA controller. Hence when host sends DMA_XFER, @@ -344,8 +344,8 @@ Documentation/ABI/testing/sysfs-bus-iio for IIO ABIs to user space. To debug ISH, event tracing mechanism is used. To enable debug logs:: - echo 1 > /sys/kernel/debug/tracing/events/intel_ish/enable - cat /sys/kernel/debug/tracing/trace + echo 1 > /sys/kernel/tracing/events/intel_ish/enable + cat /sys/kernel/tracing/trace 3.8 ISH IIO sysfs Example on Lenovo thinkpad Yoga 260 ----------------------------------------------------- |