Thanks for your reply.
I see, there are hard-coded devices...
Then, would it be acceptable to make an entry in CONFIG that says, for
example, "support automatic partition parsing" and if enabled,
automatically parse the partition when a block device is registered?
I don't think the partition parsing in the initialization process can
handle the case of active wire insertion and removal, such as USB
storage and SD cards.
However, the problem is how to handle the case when it is pulled out
during mount, and I think it is difficult to know how to handle it (the
same for Linux ?).
If the implementation concept is OK, I could automatically analyze the
partition as shown in the example below, so I would like to organize it
a bit more and submit a pull request.
(Device names have been changed to match Linux)
nsh> ls -l /dev/
/dev:
crw-rw-rw- 0 console
crw-rw-rw- 0 eeprom
cr--r--r-- 0 eeprom.uuid
crw-rw-rw- 0 i2c1
crw-rw-rw- 0 kmsg
crw-rw-rw- 0 loop
brw-rw-rw- 1929379840 mmcblk0
brw-rw-rw- 629145600 mmcblk0p1
brw-rw-rw- 1299185664 mmcblk0p2
brw-rw-rw- 2016411648 mmcblk1
brw-rw-rw- 268435456 mmcblk1p1
brw-rw-rw- 1746927616 mmcblk1p2
crw-rw-rw- 0 null
crw-rw-rw- 0 rtc0
crw-rw-rw- 0 telnet
crw-rw-rw- 0 ttyS0
crw-rw-rw- 0 tun
crw-rw-rw- 0 zero
KIKUCHI Takeyoshi
On 2023/03/09 15:11, Xiang Xiao wrote:
On Thu, Mar 9, 2023 at 6:05 AM KIKUCHI Takeyoshi <kiku...@centurysys.co.jp>
wrote:
Hi, All.
The code to parse block device partitions is included (as well as the
code to register partitions as devices), but it seems that the process
to parse partitions is not called from the location where the block
device is registered.
(There is a function called "register_blockpartition", but it is not
called from anywhere.)
Is there an intentional reason for not parsing partitions?
It's because some devices hardcode the partition layout in code. So, the
board file will call parse_block_partition after creating the block device
and finish the initialization in the original design.
Would it be a
problem to add an automatic partition parsing process call?
It could be added a new function to simplify the common usage.
KIKUCHI Takeyoshi
---
kiku...@centurysys.co.jp
--
kiku...@centurysys.co.jp
