[media] em28xx: fix+improve+unify i2c error handling, debug messages and code comments

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- do not pass USB specific error codes to userspace/i2c-subsystem
- unify the returned error codes and make them compliant with
  the i2c subsystem spec
- check number of actually transferred bytes (via USB) everywehere
- fix/improve debug messages
- improve code comments

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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Frank Schaefer 2013-01-03 14:27:05 -03:00 • committed by Mauro Carvalho Chehab

parent eaf33c404c

commit 45f04e82d0

2 changed files with 89 additions and 32 deletions

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5

drivers/media/usb/em28xx/em28xx-core.c

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116

drivers/media/usb/em28xx/em28xx-i2c.c

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