RPMsg MTU size can be variable now and no longer hardcoded to 512 bytes. Add log to the sample driver that prints current MTU size of the rpmsg buffer.
Signed-off-by: Tanmay Shah <[email protected]> --- Changes in v3: - Check for error when retrieving MTU size - %s/mtu/MTU/ samples/rpmsg/rpmsg_client_sample.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/samples/rpmsg/rpmsg_client_sample.c b/samples/rpmsg/rpmsg_client_sample.c index ae5081662283..55afa53189af 100644 --- a/samples/rpmsg/rpmsg_client_sample.c +++ b/samples/rpmsg/rpmsg_client_sample.c @@ -52,6 +52,7 @@ static int rpmsg_sample_probe(struct rpmsg_device *rpdev) { int ret; struct instance_data *idata; + ssize_t mtu; dev_info(&rpdev->dev, "new channel: 0x%x -> 0x%x!\n", rpdev->src, rpdev->dst); @@ -62,6 +63,14 @@ static int rpmsg_sample_probe(struct rpmsg_device *rpdev) dev_set_drvdata(&rpdev->dev, idata); + mtu = rpmsg_get_mtu(rpdev->ept); + if (mtu < 0) { + dev_warn(&rpdev->dev, "invalid rpmsg MTU size = %ld\n", mtu); + return mtu; + } + + dev_info(&rpdev->dev, "rpmsg MTU size = %ld\n", mtu); + /* send a message to our remote processor */ ret = rpmsg_send(rpdev->ept, MSG, strlen(MSG)); if (ret) { -- 2.34.1
