Hi,

Am 26.08.2010 um 17:31 schrieb Pierpaolo Garofalo:

> Hi all,
> I would be grateful if someone could give me some hint about the error 
> messages below filtered from dmesg (Letux 400 Lenny):
> 
> -----------------------------------------------------------------
> p...@lenny400:~$ dmesg | grep pcf 
> i2c-adapter i2c-0: pcf8563_probe
> pcf8563 0-0051: chip found, driver version 0.4.2
> pcf8563: dev (254:0)
> pcf8563 0-0051: rtc core: registered pcf8563 as rtc0
> pcf8563 0-0051: pcf8563_get_datetime: read error
> pcf8563 0-0051: hctosys: unable to read the hardware clock
> pcf8563 0-0051: low voltage detected, date/time is not reliable.
> pcf8563 0-0051: retrieved date/time is not valid.
> pcf8563 0-0051: pcf8563_get_datetime: read error
> pcf8563 0-0051: low voltage detected, date/time is not reliable.
> pcf8563 0-0051: retrieved date/time is not valid.
> pcf8563 0-0051: pcf8563_get_datetime: read error
> -----------------------------------------------------------------

There is some bug in the code to handle the RTC in the Letux 400.

Most other Mipsbooks have a slightly different RTC than the 
Letux 400 (there was some undocumented hardware change)
and we have not yet been able to write a "universal" driver.

Which machine are you using?

> p...@lenny400:~$ dmesg | grep error
> pcf8563 0-0051: pcf8563_get_datetime: read error
> pcf8563 0-0051: pcf8563_get_datetime: read error
> pcf8563 0-0051: pcf8563_get_datetime: read error
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43302
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43314
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43315
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43316
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43318
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43319
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43320
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43327
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43328
> EXT2-fs error (device mmcblk0p2): ext2_free_inode: bit already cleared for 
> inode 43329

Here, I would assume that the ext2/3 file system is slightly damages. You should
do a fsck (on an external machine).

> 
> Thank you very much,
> pier
> 
> 
> PS
> Is it confirmed Fn + ((Pg Up / Pg-Down / Home / End) not working?

Hm.
According to the source code of the keyboard driver they should be
handled and translated (Line 157 in 
http://projects.goldelico.com/p/letux-400/source/tree/master/drivers/input/keyboard/jz_keypad.c
 ).

best regards,
Nikolaus


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