3516a，fdisk /dev/mmcblk0，出现'/dev/mmcblk0' is opened for read only，

是写保护了，硬件部重新处理了

SDIO_CWPR，硬件部在旁边接了一个上拉电阻，拉高了

本帖最后由 xiefifle 于 2016-5-25 10:11 编辑

但是现在，还是出现
# fdisk /dev/mmcblk0

mmcblk0: error -110 transferring data, sector 6, nr 2, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 6
mmcblk0: error -110 transferring data, sector 7, nr 1, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 7
Buffer I/O error on device mmcblk0, logical block 0
mmcblk0: error -110 sending stop command, original cmd response 0x900, card status 0x480900
mmcblk0: error -110 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x900
mmcblk0: retrying using single block read
mmcblk0: error -110 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 0
mmcblk0: error -110 transferring data, sector 1, nr 7, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 1
mmcblk0: error -110 transferring data, sector 2, nr 6, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 2
mmcblk0: error -110 transferring data, sector 3, nr 5, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 3
mmcblk0: error -110 transferring data, sector 4, nr 4, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 4
mmcblk0: error -110 transferring data, sector 5, nr 3, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 5
mmcblk0: error -110 transferring data, sector 6, nr 2, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 6

写保护了？:victory::victory: