Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-03 Thread Frank Schäfer
Am 02.01.2013 23:21, schrieb Sascha Sommer: > Hello Frank, > > Am Wed, 02 Jan 2013 22:25:10 +0100 > schrieb Frank Schäfer : > >> Hi Sascha, >> >> Am 02.01.2013 21:45, schrieb Sascha Sommer: >>> Hello, >>> >>> Am Sat, 22 Dec 2012 22:07:46 -0200 >>> schrieb Mauro Carvalho Chehab : >>> Em Sun, 16

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-02 Thread Sascha Sommer
Hello Frank, Am Wed, 02 Jan 2013 22:25:10 +0100 schrieb Frank Schäfer : > Hi Sascha, > > Am 02.01.2013 21:45, schrieb Sascha Sommer: > > Hello, > > > > Am Sat, 22 Dec 2012 22:07:46 -0200 > > schrieb Mauro Carvalho Chehab : > > > >> Em Sun, 16 Dec 2012 19:23:28 +0100 > >> Frank Schäfer escreveu:

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-02 Thread Frank Schäfer
Am 02.01.2013 22:40, schrieb Antti Palosaari: > On 01/02/2013 11:29 PM, Frank Schäfer wrote: >> Am 02.01.2013 22:15, schrieb Antti Palosaari: >>> On 01/02/2013 11:12 PM, Frank Schäfer wrote: Hi Antti, Am 02.01.2013 20:29, schrieb Antti Palosaari: > On 12/24/2012 01:09 PM, Frank S

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-02 Thread Antti Palosaari
On 01/02/2013 11:29 PM, Frank Schäfer wrote: Am 02.01.2013 22:15, schrieb Antti Palosaari: On 01/02/2013 11:12 PM, Frank Schäfer wrote: Hi Antti, Am 02.01.2013 20:29, schrieb Antti Palosaari: On 12/24/2012 01:09 PM, Frank Schäfer wrote: Am 23.12.2012 15:46, schrieb Mauro Carvalho Chehab: Em

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-02 Thread Frank Schäfer
Am 02.01.2013 22:15, schrieb Antti Palosaari: > On 01/02/2013 11:12 PM, Frank Schäfer wrote: >> Hi Antti, >> >> Am 02.01.2013 20:29, schrieb Antti Palosaari: >>> On 12/24/2012 01:09 PM, Frank Schäfer wrote: Am 23.12.2012 15:46, schrieb Mauro Carvalho Chehab: > Em Sun, 23 Dec 2012 14:58:12

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-02 Thread Frank Schäfer
Hi Sascha, Am 02.01.2013 21:45, schrieb Sascha Sommer: > Hello, > > Am Sat, 22 Dec 2012 22:07:46 -0200 > schrieb Mauro Carvalho Chehab : > >> Em Sun, 16 Dec 2012 19:23:28 +0100 >> Frank Schäfer escreveu: >> >>> The em2800 can transfer up to 4 bytes per i2c message. >>> All other em25xx/em27xx/28x

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-02 Thread Antti Palosaari
On 01/02/2013 11:12 PM, Frank Schäfer wrote: Hi Antti, Am 02.01.2013 20:29, schrieb Antti Palosaari: On 12/24/2012 01:09 PM, Frank Schäfer wrote: Am 23.12.2012 15:46, schrieb Mauro Carvalho Chehab: Em Sun, 23 Dec 2012 14:58:12 +0100 Frank Schäfer escreveu: Am 23.12.2012 01:07, schrieb Maur

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-02 Thread Frank Schäfer
Hi Antti, Am 02.01.2013 20:29, schrieb Antti Palosaari: > On 12/24/2012 01:09 PM, Frank Schäfer wrote: >> Am 23.12.2012 15:46, schrieb Mauro Carvalho Chehab: >>> Em Sun, 23 Dec 2012 14:58:12 +0100 >>> Frank Schäfer escreveu: >>> Am 23.12.2012 01:07, schrieb Mauro Carvalho Chehab: > Em Su

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-02 Thread Sascha Sommer
Hello, Am Sat, 22 Dec 2012 22:07:46 -0200 schrieb Mauro Carvalho Chehab : > Em Sun, 16 Dec 2012 19:23:28 +0100 > Frank Schäfer escreveu: > > > The em2800 can transfer up to 4 bytes per i2c message. > > All other em25xx/em27xx/28xx chips can transfer at least 64 bytes > > per message. > > > > I

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2013-01-02 Thread Antti Palosaari
On 12/24/2012 01:09 PM, Frank Schäfer wrote: Am 23.12.2012 15:46, schrieb Mauro Carvalho Chehab: Em Sun, 23 Dec 2012 14:58:12 +0100 Frank Schäfer escreveu: Am 23.12.2012 01:07, schrieb Mauro Carvalho Chehab: Em Sun, 16 Dec 2012 19:23:28 +0100 Frank Schäfer escreveu: Those devices are lim

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2012-12-24 Thread Frank Schäfer
Am 23.12.2012 15:46, schrieb Mauro Carvalho Chehab: > Em Sun, 23 Dec 2012 14:58:12 +0100 > Frank Schäfer escreveu: > >> Am 23.12.2012 01:07, schrieb Mauro Carvalho Chehab: >>> Em Sun, 16 Dec 2012 19:23:28 +0100 >>> Frank Schäfer escreveu: >>> The em2800 can transfer up to 4 bytes per i2c mes

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2012-12-23 Thread Mauro Carvalho Chehab
Em Sun, 23 Dec 2012 14:58:12 +0100 Frank Schäfer escreveu: > Am 23.12.2012 01:07, schrieb Mauro Carvalho Chehab: > > Em Sun, 16 Dec 2012 19:23:28 +0100 > > Frank Schäfer escreveu: > > > >> The em2800 can transfer up to 4 bytes per i2c message. > >> All other em25xx/em27xx/28xx chips can transfer

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2012-12-23 Thread Frank Schäfer
Am 23.12.2012 01:07, schrieb Mauro Carvalho Chehab: > Em Sun, 16 Dec 2012 19:23:28 +0100 > Frank Schäfer escreveu: > >> The em2800 can transfer up to 4 bytes per i2c message. >> All other em25xx/em27xx/28xx chips can transfer at least 64 bytes per >> message. >> >> I2C adapters should never split

Re: [PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2012-12-22 Thread Mauro Carvalho Chehab
Em Sun, 16 Dec 2012 19:23:28 +0100 Frank Schäfer escreveu: > The em2800 can transfer up to 4 bytes per i2c message. > All other em25xx/em27xx/28xx chips can transfer at least 64 bytes per message. > > I2C adapters should never split messages transferred via the I2C subsystem > into multiple mess

[PATCH v2 2/5] em28xx: respect the message size constraints for i2c transfers

2012-12-16 Thread Frank Schäfer
The em2800 can transfer up to 4 bytes per i2c message. All other em25xx/em27xx/28xx chips can transfer at least 64 bytes per message. I2C adapters should never split messages transferred via the I2C subsystem into multiple message transfers, because the result will almost always NOT be the same as