Is ldX @ sdmmc supposed to be r/o only?

["Martin S. Weber" <Ephaeton%gmx.net@localhost>]

NetBSD 6.0_BETA2 (GENERIC) #1: Sat Jul 14 19:25:57 EDT 2012
LENOVO 7658CTO (ThinkPad T61)
mainbus0 (root)
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
ppb5 at pci0 dev 30 function 0: vendor 0x8086 product 0x2448 (rev. 0xf3)
pci6 at ppb5 bus 21
pci6: i/o space, memory space enabled
sdhc0 at pci6 dev 0 function 2: vendor 0x1180 product 0x0822 (rev. 0x21)
sdhc0: interrupting at ioapic0 pin 18
sdmmc0 at sdhc0

(...)

ld0 at sdmmc0: <28362>
ld0: 1923 MB, 976 cyl, 64 head, 63 sec, 512 bytes/sect x 3938304 sectors
ld0: 4-bit width, bus clock 25.000 MHz
sdmmc0: write-protected
ld0a: error writing fsbn 643 of 643-706 (ld0 bn 706; cn 0 tn 22 sn 2)
sdmmc0: write-protected
ld0a: error writing fsbn 643 of 643-706 (ld0 bn 706; cn 0 tn 22 sn 2)
sdmmc0: write-protected
ld0a: error writing fsbn 643 of 643-706 (ld0 bn 706; cn 0 tn 22 sn 2)
sdmmc0: write-protected
ld0a: error writing fsbn 643 of 643-706 (ld0 bn 706; cn 0 tn 22 sn 2)
sdmmc0: write-protected
ld0a: error writing fsbn 643 of 643-706 (ld0 bn 706; cn 0 tn 22 sn 2)
sdmmc0: write-protected
ld0a: error writing fsbn 1 of 1-128 (ld0 bn 64; cn 0 tn 2 sn 0)
sdmmc0: write-protected
ld0a: error writing fsbn 242 of 242-369 (ld0 bn 305; cn 0 tn 9 sn 17)
sdmmc0: write-protected
ld0a: error writing fsbn 643 of 643-706 (ld0 bn 706; cn 0 tn 22 sn 2)
sdmmc0: write-protected
ld0a: error writing fsbn 1 of 1-128 (ld0 bn 64; cn 0 tn 2 sn 0)
sdmmc0: write-protected
ld0a: error writing fsbn 242 of 242-369 (ld0 bn 305; cn 0 tn 9 sn 17)

It's mounted r/w at least.. The medium has been used to be written on
right before (camera), I can also mount r/w via a external usb cardreader
without fiddling with the hardware, so that's not it..

So .. $SUBJECT ?

TIA,
-Martin