22
command to see how your USB is detected).
# usb 1-1.1: device v17ef p3818 is not supported
sd 1:0:0:0: [sdc] No Caching mode page present
sd 1:0:0:0: [sdc] Assuming drive cache: write through
sd 1:0:0:0: [sdc] No Caching mode page present
sd 1:0:0:0: [sdc] Assuming drive cache: write through
sd 1:0:0:0: [sdc] No Caching mode page present
sd 1:0:0:0: [sdc] Assuming drive cache: write through
Mount the USB (in this example the USB is formatted as FAT)
# mount /dev/sdc1 /media
# ls -la /media
Now, you can copy a video to /media and play it. This will perform a simple USB test.
3.3.3.
SD
Plug the SD card and find out where the card is mapped. After typing dmesg at you
will see something like this:
# dmesg | tail
mmc0: new high speed SD card at address aaaa
mmcblk1: mmc0:aaaa SU02G 7.8 GiB
mmcblk1: p1
Your card is mapped in /dev/mmcblk0.
3.3.4.
I2C
# sudo apt
-
get
install i2c-tool
#
i2cdetect 1
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-1. I will probe address range 0x03-0x77. Continue? [Y/n] y
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- 27 -- -- -- -- -- -- -- --
30: 30 -- -- -- -- -- -- 37 -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- 48 -- 4a 4b -- -- -- --
50: UU 51 -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- -- # [/code]
