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[media] ir-kbd-i2c: improve remote behavior with z8 behind usb

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Add the same "are you ready?" i2c_master_send() poll command to
get_key_haup_xvr found in lirc_zilog, which is apparently seen in
the Windows driver for the PVR-150 w/a z8. This stabilizes what is
received from both the HD-PVR and HVR-1950, even with their polling
intervals at the default of 100, thus the removal of the custom
260ms polling_interval in pvrusb2-i2c-core.c.

Acked-by: Andy Walls <awalls@md.metrocast.net>
Acked-by: Mike Isely <isely@isely.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jarod Wilson 2011-01-20 18:31:18 -03:00 committed by Mauro Carvalho Chehab
parent 5766d204ae
commit 8df59918b5
2 changed files with 13 additions and 1 deletions
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13
drivers/media/video/ir-kbd-i2c.c
View file

@ -128,6 +128,19 @@ static int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
static int get_key_haup_xvr(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
int ret;
unsigned char buf[1] = { 0 };
/*
* This is the same apparent "are you ready?" poll command observed
* watching Windows driver traffic and implemented in lirc_zilog. With
* this added, we get far saner remote behavior with z8 chips on usb
* connected devices, even with the default polling interval of 100ms.
*/
ret = i2c_master_send(ir->c, buf, 1);
if (ret != 1)
return (ret < 0) ? ret : -EINVAL;
return get_key_haup_common (ir, ir_key, ir_raw, 6, 3);
}

1
drivers/media/video/pvrusb2/pvrusb2-i2c-core.c
View file

@ -597,7 +597,6 @@ static void pvr2_i2c_register_ir(struct pvr2_hdw *hdw)
init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
init_data->type = RC_TYPE_RC5;
init_data->name = hdw->hdw_desc->description;
init_data->polling_interval = 260; /* ms From lirc_zilog */
/* IR Receiver */
info.addr = 0x71;
info.platform_data = init_data;