Messages in this thread | | | Subject | Re: [PATCH 1/3] [media] si2157: get chip id during probing | From | Antti Palosaari <> | Date | Sun, 23 Apr 2017 15:19:21 +0300 |
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On 03/16/2017 12:22 AM, Andreas Kemnade wrote: > If the si2157 is behind a e.g. si2168, the si2157 will > at least in some situations not be readable after the si268 > got the command 0101. It still accepts commands but the answer > is just ffffff. So read the chip id before that so the > information is not lost. > > The following line in kernel output is a symptome > of that problem: > si2157 7-0063: unknown chip version Si21255-\xffffffff\xffffffff\xffffffff That is hackish solution :( Somehow I2C reads should be get working rather than making this kind of work-around. Returning 0xff to i2c reads means that signal strength also shows some wrong static value?
regards Antti
-- http://palosaari.fi/
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