b->flags &= ~V4L2_BUFFER_MASK_FLAGS; b->flags |= q->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK; if ((q->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK) != V4L2_BUF_FLAG_TIMESTAMP_COPY) { b->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK; b->flags |= q->timestamp_flags ...
1. flags中:V4L2_BUF_FLAG_MAPPED, V4L2_BUF_FLAG_QUEUED and V4L2_BUF_FLAG_DONE被设置(分别表示当前缓存已经映射、缓存可以采集数据、缓存可以提取数据)。 2. memory中,V4L2_MEMORY_MMAP被设置。 3.m.offset中,从将要mapping 的device memory头到数据头的offset. 4. length 中,填充当前Buffer长度。 5.其它...
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 128000000 Block count: 5119...
u16 num; /* use bitops to set/clear/test flags */ unsigned long flags; /* attribute to differentiate multiple indices on one physical device */ int index; /* V4L2 file handles */ spinlock_t fh_lock; /* Lock for all v4l2_fhs */ struct list_head fh_list; /* List of struct v4l2_...
Feb 27 02:58:18 X335002201 user.warn kernel: [ 70.931083] vb2_core_qbuf() Feb 27 02:58:18 X335002201 user.warn kernel: [ 70.931098] get_vaddr_frames() flags=0x4fb Feb 27 02:58:18 X335002201 user.warn kernel: [ 70.931103] get_vaddr_frames(): follow_pfn fail: -22/-22 ...
> - EXT_FMT/EXT_BUF capability flags to detect whether new ioctls are > supported or not have not been added yet Can you post a v3, rebased on top of our current master branch? No other changes needed, just a rebase. I want to discuss this series during the media summit in Lyon ...
>>> - EXT_FMT/EXT_BUF capability flags to detect whether new ioctls are >>> supported or not have not been added yet >> >> Can you post a v3, rebased on top of our current master branch? No other >> changes needed, just a rebase. ...
flags 为缓存当前状态(常见值有 V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE,分别代表当前缓存已经 映射、缓存可以采集数据、缓存可以提取数据) */ enum v4l2_field field; struct timeval timestamp; struct v4l2_timecode timecode; ...
unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data *data); /* To determine what the adapter supports */ u32 (*functionality) (struct i2c_adapter *); }; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. ...
1. flags 中:V4L2_BUF_FLAG_MAPPED,V4L2_BUF_FLAG_QUEUEDandV4L2_BUF_FLAG_DONE被设置。 2. memory中,V4L2_MEMORY_MMAP被设置。 3.m.offset中,从将要mapping 的device memory头到数据头的offset. 4.length中,填充当前Buffer长度。 5。其它的Field有可能设置,也有可能不被设置。