aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/configs/assabet_defconfig
diff options
context:
space:
mode:
authorJarod Wilson <jarod@redhat.com>2011-01-14 16:40:32 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-01-19 12:52:21 -0200
commit559d162e1ebcdb61e89f154f2c2db376af072b0e (patch)
tree296f29a525809e88d72c6a3b2579128d6396f6b9 /arch/arm/configs/assabet_defconfig
parent324b04ba5da7918a2409f8113e46843bfbd89e67 (diff)
[media] hdpvr: reduce latency of i2c read/write w/recycled buffer
The current hdpvr code kmalloc's a new buffer for every i2c read and write. Rather than do that, lets allocate a buffer in the driver's device struct and just use that every time. The size I've chosen for the buffer is the maximum size I could ascertain might be used by either ir-kbd-i2c or lirc_zilog, plus a bit of padding (lirc_zilog may use up to 100 bytes on tx, rounded that up to 128). Note that this might also remedy user reports of very sluggish behavior of IR receive with hdpvr hardware. v2: make sure (len <= (dev->i2c_buf)) [Jean Delvare] Reported-by: Jean Delvare <khali@linux-fr.org> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'arch/arm/configs/assabet_defconfig')
0 files changed, 0 insertions, 0 deletions