diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2010-01-22 12:10:52 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-02-26 15:10:52 -0300 |
| commit | 6c614044ff00bf3e7403ac6c4ed4e53db8c349f3 (patch) | |
| tree | 52ea3e4cdeae03ae444cd155ab96cf87e94c04c4 /drivers/media/dvb/dvb-usb/af9015.h | |
| parent | 0b32d65cd7938d31eebd9c62aab6a59a3c4cf0f8 (diff) | |
V4L/DVB: media: dvb/af9015, implement eeprom hashing
This will be useful for matching of IR tables later.
We read the eeprom anyway for dumping. Switch the dumping to
print_hex_dump_bytes and compute hash above that by
hash = 0;
for (u32 VAL) in (eeprom):
hash *= GOLDEN_RATIO_PRIME_32
hash += VAL; // while preserving endinaness
The computation is moved earlier to the flow, namely from
af9015_af9013_frontend_attach to af9015_read_config, so that
we can access the sum in af9015_read_config already.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/dvb-usb/af9015.h')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/af9015.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/af9015.h b/drivers/media/dvb/dvb-usb/af9015.h index 931c8515830..ef36b183149 100644 --- a/drivers/media/dvb/dvb-usb/af9015.h +++ b/drivers/media/dvb/dvb-usb/af9015.h @@ -107,6 +107,7 @@ struct af9015_config { u16 mt2060_if1[2]; u16 firmware_size; u16 firmware_checksum; + u32 eeprom_sum; u8 *ir_table; u16 ir_table_size; }; |