@ mojo
I put in your posted comments with the following output.
root@slitaz:/home/tux# tazpkg list-files linux-mmc
Installed files with: linux-mmc
================================================================================
/lib/modules/2.6.37-slitaz/kernel/drivers/misc/iwmc3200top/iwmc3200top.ko.gz
/lib/modules/2.6.37-slitaz/kernel/drivers/misc/tifm_7xx1.ko.gz
/lib/modules/2.6.37-slitaz/kernel/drivers/mmc/card/mmc_block.ko.gz
/lib/modules/2.6.37-slitaz/kernel/drivers/mmc/card/sdio_uart.ko.gz
/lib/modules/2.6.37-slitaz/kernel/drivers/mmc/host/sdhci.ko.gz
/lib/modules/2.6.37-slitaz/kernel/drivers/mmc/host/sdhci-pci.ko.gz
================================================================================
6 files installed with linux-mmc.
root@slitaz:/home/tux#
root@slitaz:/home/tux# lsmod
Module Size Used by Not tainted
yenta_socket 16223 0
pcmcia_rsrc 6989 1 yenta_socket
ipw2200 108387 0
libipw 17987 1 ipw2200
cfg80211 99896 2 ipw2200,libipw
rfkill 10682 1 cfg80211
lib80211 2676 2 ipw2200,libipw
pcmcia 24993 0
pcmcia_core 8413 3 yenta_socket,pcmcia_rsrc,pcmcia
snd_intel8x0 19786 5
snd_ac97_codec 77963 1 snd_intel8x0
ac97_bus 718 1 snd_ac97_codec
snd_pcm 43737 4 snd_intel8x0,snd_ac97_codec
snd_timer 12515 3 snd_pcm
snd 33394 10 snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
soundcore 3357 1 snd
snd_page_alloc 4853 2 snd_intel8x0,snd_pcm
i915 254040 2
drm_kms_helper 18798 1 i915
drm 111992 3 i915,drm_kms_helper
i2c_algo_bit 3479 1 i915
button 3602 1 i915
i2c_core 12192 4 i915,drm_kms_helper,drm,i2c_algo_bit
video 9783 1 i915
output 1144 1 video
intel_agp 7908 1 i915
intel_gtt 9214 3 i915,intel_agp
agpgart 18221 3 drm,intel_agp,intel_gtt
root@slitaz:/home/tux#
root@slitaz:/home/tux# lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller [8086:3580] (rev 02)
00:00.1 System peripheral [0880]: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller [8086:3584] (rev 02)
00:00.3 System peripheral [0880]: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller [8086:3585] (rev 02)
00:02.0 VGA compatible controller [0300]: Intel Corporation 82852/855GM Integrated Graphics Device [8086:3582] (rev 02)
00:02.1 Display controller [0380]: Intel Corporation 82852/855GM Integrated Graphics Device [8086:3582] (rev 02)
00:1d.0 USB controller [0c03]: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 [8086:24c2] (rev 03)
00:1d.1 USB controller [0c03]: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 [8086:24c4] (rev 03)
00:1d.7 USB controller [0c03]: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller [8086:24cd] (rev 03)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev 83)
00:1f.0 ISA bridge [0601]: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge [8086:24cc] (rev 03)
00:1f.1 IDE interface [0101]: Intel Corporation 82801DBM (ICH4-M) IDE Controller [8086:24ca] (rev 03)
00:1f.3 SMBus [0c05]: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller [8086:24c3] (rev 03)
00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller [8086:24c5] (rev 03)
01:0a.0 CardBus bridge [0607]: Ricoh Co Ltd RL5c476 II [1180:0476] (rev ab)
01:0a.1 CardBus bridge [0607]: Ricoh Co Ltd RL5c476 II [1180:0476] (rev ab)
01:0a.2 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C552 IEEE 1394 Controller [1180:0552] (rev 03)
01:0a.3 System peripheral [0880]: Ricoh Co Ltd R5C576 SD Bus Host Adapter [1180:0576] (rev 01)
01:0a.4 System peripheral [0880]: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter [1180:0592]
01:0d.0 Network controller [0280]: Intel Corporation PRO/Wireless 2915ABG [Calexico2] Network Connection [8086:4223] (rev 05)
root@slitaz:/home/tux#
... no idea what next?
Thank you in advance for your assistance.