On Sat, Feb 12, 2011 at 11:27:27AM -0500, Andy Walls wrote: > On Sat, 2011-02-12 at 08:29 -0700, Mark Zimmerman wrote: > > On Tue, Dec 07, 2010 at 12:07:53PM -0700, Mark Zimmerman wrote: > > > Greetings: > > > > > > I have a DViCO FusionHDTV7 Dual Express card that works with 2.6.35 but > > > which fails to initialize with the latest 2.6.36 kernel. The firmware > > > fails to load due to an i2c failure. A search of the archives indicates > > > that this is not the first time this issue has occurred. > > > > > > What can I do to help get this problem fixed? > > > > > > Here is the dmesg from 2.6.35, for the two tuners: > > > > > > xc5000: waiting for firmware upload (dvb-fe-xc5000-1.6.114.fw)... > > > xc5000: firmware read 12401 bytes. > > > xc5000: firmware uploading... > > > xc5000: firmware upload complete... > > > xc5000: waiting for firmware upload (dvb-fe-xc5000-1.6.114.fw)... > > > xc5000: firmware read 12401 bytes. > > > xc5000: firmware uploading... > > > xc5000: firmware upload complete.. > > > > > > and here is what happens with 2.6.36: > > > > > > xc5000: waiting for firmware upload (dvb-fe-xc5000-1.6.114.fw)... > > > xc5000: firmware read 12401 bytes. > > > xc5000: firmware uploading... > > > xc5000: I2C write failed (len=3) > > > xc5000: firmware upload complete... > > > xc5000: Unable to initialise tuner > > > xc5000: waiting for firmware upload (dvb-fe-xc5000-1.6.114.fw)... > > > xc5000: firmware read 12401 bytes. > > > xc5000: firmware uploading... > > > xc5000: I2C write failed (len=3) > > > xc5000: firmware upload complete... > > > > > > > I did a git bisect on this and finally reached the end of the line. > > Here is what it said: > > > > qpc$ git bisect bad > > 82ce67bf262b3f47ecb5a0ca31cace8ac72b7c98 is the first bad commit > > commit 82ce67bf262b3f47ecb5a0ca31cace8ac72b7c98 > > Author: Jarod Wilson <jarod@xxxxxxxxxx> > > Date: Thu Jul 29 18:20:44 2010 -0300 > > > > V4L/DVB: staging/lirc: fix non-CONFIG_MODULES build horkage > > > > Fix when CONFIG_MODULES is not enabled: > > > > drivers/staging/lirc/lirc_parallel.c:243: error: implicit declaration of function 'module_refcount' > > drivers/staging/lirc/lirc_it87.c:150: error: implicit declaration of function 'module_refcount' > > drivers/built-in.o: In function `it87_probe': > > lirc_it87.c:(.text+0x4079b0): undefined reference to `init_chrdev' > > lirc_it87.c:(.text+0x4079cc): undefined reference to `drop_chrdev' > > drivers/built-in.o: In function `lirc_it87_exit': > > lirc_it87.c:(.exit.text+0x38a5): undefined reference to `drop_chrdev' > > > > Its a quick hack and untested beyond building, since I don't have the > > hardware, but it should do the trick. > > > > Acked-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx> > > Signed-off-by: Jarod Wilson <jarod@xxxxxxxxxx> > > Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> > > > > :040000 040000 f645b46a07b7ff87a2c11ac9296a5ff56e89a0d0 49e50945ccf8e1c8567c049908890d2752443b72 M drivers > > Hmm. git log --patch 82ce67bf262b3f47ecb5a0ca31cace8ac72b7c98 shows the > commit is completely unrealted. > > Please try and see if things are good or bad at commit > 18a87becf85d50e7f3d547f1b7a75108b151374d: > > commit 18a87becf85d50e7f3d547f1b7a75108b151374d > Author: Jean Delvare <khali@xxxxxxxxxxxx> > Date: Sun Jul 18 17:05:17 2010 -0300 > > V4L/DVB: cx23885: i2c_wait_done returns 0 or 1, don't check for < 0 return v > > Function i2c_wait_done() never returns negative values, so there is no > point in checking for them. > > Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx> > Signed-off-by: Andy Walls <awalls@xxxxxxxxxxxxxxxx> > Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> > > Which is the first commit, prior to the one you found, that seems to me > to have any direct bearing to I2C transactions. > > If that commit is good, then these commits in between would be my next > likely suspects: > e5514f104d875b3d28cbcd5d4f2b96ab2fca1e29 > dbe83a3b921328e12b2abe894fc692afba293d7f > > Regards, > Andy > Sorry to require so much hand holding, but I am new to all of this git gymnastics. Would you mind sending me the correct git command to get to a specific commit? Also, do I need to do a bisect reset? Thanks, -- Mark -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
