tree 867752434af3591fa3f57abaf315d8b40d3348b9
parent a511ba947600ae263f8c29c86020ba66a901d3e5
author Hans de Goede <hdegoede@redhat.com> 1255689773 -0300
committer Mauro Carvalho Chehab <mchehab@redhat.com> 1260045645 -0200

V4L/DVB (13179): gspca_ov519: cache sensor regs to avoid unnecessary slow i2c reads / writes

Cache sensor regs to avoid unnecessary slow i2c reads / writes, this speeds
up sd_start a bit with most bridges and a lot (from 5 seconds down to 0.3
seconds) with W996xCF cams, as this avoids very slow bit bang IO over
USB i2c reads.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>