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V4L/DVB (9583): Remember chip id of devices at initialization

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When setting up the device, remember the chip id, so we can control behavior
in the future without having to read the register continuously.

Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Devin Heitmueller 2008-11-12 02:05:02 -03:00 committed by Mauro Carvalho Chehab
parent 1ed1dd54b0
commit 600bd7f0ed
2 changed files with 2 additions and 0 deletions
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1
drivers/media/video/em28xx/em28xx-cards.c
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@ -1319,6 +1319,7 @@ void em28xx_pre_card_setup(struct em28xx *dev)
dev->wait_after_write = 5;
rc = em28xx_read_reg(dev, EM28XX_R0A_CHIPID);
if (rc > 0) {
dev->chip_id = rc;
switch (rc) {
case CHIP_ID_EM2860:
em28xx_info("chip ID is em2860\n");

1
drivers/media/video/em28xx/em28xx.h
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@ -370,6 +370,7 @@ struct em28xx {
char name[30]; /* name (including minor) of the device */
int model; /* index in the device_data struct */
int devno; /* marks the number of this device */
enum em28xx_chip_id chip_id;
unsigned int is_em2800:1;
unsigned int has_msp34xx:1;
unsigned int has_tda9887:1;