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请问高人,卡是一模一样的,只是GPIO口不一样.
两张块用一个驱动,我该怎么做....? 请指教.
我是把驱动复制了多一份,改了一下GPIO地址,编译进内核,就是没法读写,提示:
bus mmc alloc card
mmc1: host does not support reading read-only switch. assuming write-enable.
bus mmc add card
mmc1: new SD card at address f405
bus.c mmc bus uevent
bus mmc bus probe
find first devidx =============== 0
find first sizeof(dev_use) =============== 4
find first MMC_NUM_MINORS =============== 32
find first devidx s=============== 0
find first sizeof(dev_use) s=============== 4
find first MMC_NUM_MINORS s=============== 32
first minor -------------- 0
-------------------------- mmcblk0
err --------------- 0
mmcblk0: mmc1:f405 SU02G 1971712KiB
mmcblk0:queue mmc prep request
mmc_blk_issue_rq ret 1 ------------ 0
p1
queue mmc prep request
mmc_blk_issue_rq ret 1 ------------ 0
FAT: bogus number of reserved sectors
VFS: Can't find a valid FAT filesystem on dev mmcblk0.
mmc probe exit ================
queue mmc prep request
mmc_blk_issue_rq ret 1 ------------ 0
queue mmc prep request
mmc_blk_issue_rq ret 1 ------------ 0
queue mmc prep request
mmc_blk_issue_rq ret 1 ------------ 0
queue mmc prep request
mmcblk0: error -110 sending stop command
end_request: I/O error, dev mmcblk0, sector 7973
mmc_blk_issue_rq ret 1 ------------ 1
end_request: I/O error, dev mmcblk0, sector 7974
mmc_blk_issue_rq ret 1 ------------ 1
end_request: I/O error, dev mmcblk0, sector 7975
mmc_blk_issue_rq ret 1 ------------ 1
end_request: I/O error, dev mmcblk0, sector 7976
mmc_blk_issue_rq ret 1 ------------ 1
end_request: I/O error, dev mmcblk0, sector 7977
mmc_blk_issue_rq ret 1 ------------ 1
end_request: I/O error, dev mmcblk0, sector 7978
mmc_blk_issue_rq ret 1 ------------ 1
end_request: I/O error, dev mmcblk0, sector 7979
mmc_blk_issue_rq ret 1 ------------ 1
end_request: I/O error, dev mmcblk0, sector 7980
mmc_blk_issue_rq ret 1 ------------ 0
queue mmc prep request
mmcblk0: error -110 sending read/write command
end_request: I/O error, dev mmcblk0, sector 7973
mmc_blk_issue_rq ret 1 ------------ 0
FAT: Directory bread(block 7720) failed
queue mmc prep request
我怀疑我从一开始就走错了方向. |
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