[PATCH 1/6] [media] s5p-mfc: set capablity bus_info as required by VIDIOC_QUERYCAP
From: Shuah Khan <hidden>
Date: 2016-06-29 19:54:07
Also in:
linux-media, lkml
On 06/16/2016 03:40 PM, Javier Martinez Canillas wrote:
The driver doesn't set the struct v4l2_capability bus_info field so the
v4l2-compliance tool reports the following errors for VIDIOC_QUERYCAP:
Required ioctls:
VIDIOC_QUERYCAP returned 0 (Success)
fail: v4l2-compliance.cpp(304): string empty
fail: v4l2-compliance.cpp(528): check_ustring(vcap.bus_info, sizeof(vcap.bus_info))
test VIDIOC_QUERYCAP: FAIL
This patch fixes by setting the field in VIDIOC_QUERYCAP ioctl handler:
Required ioctls:
VIDIOC_QUERYCAP returned 0 (Success)
test VIDIOC_QUERYCAP: OK
Signed-off-by: Javier Martinez Canillas <redacted>I started making the very same changes. Looks good. Reviewed-by: Shuah Khan <redacted> -- Shuah
quoted hunk ↗ jump to hunk
--- drivers/media/platform/s5p-mfc/s5p_mfc_dec.c | 3 ++- drivers/media/platform/s5p-mfc/s5p_mfc_enc.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-)diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c index f2d6376ce618..4a40df22fd63 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c@@ -267,7 +267,8 @@ static int vidioc_querycap(struct file *file, void *priv, strncpy(cap->driver, dev->plat_dev->name, sizeof(cap->driver) - 1); strncpy(cap->card, dev->plat_dev->name, sizeof(cap->card) - 1); - cap->bus_info[0] = 0; + snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", + dev_name(&dev->plat_dev->dev)); /* * This is only a mem-to-mem video device. The capture and output * device capability flags are left only for backward compatibilitydiff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c index 034b5c1d35a1..dd466ea6429e 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c@@ -945,7 +945,8 @@ static int vidioc_querycap(struct file *file, void *priv, strncpy(cap->driver, dev->plat_dev->name, sizeof(cap->driver) - 1); strncpy(cap->card, dev->plat_dev->name, sizeof(cap->card) - 1); - cap->bus_info[0] = 0; + snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", + dev_name(&dev->plat_dev->dev)); /* * This is only a mem-to-mem video device. The capture and output * device capability flags are left only for backward compatibility