good question. you want to make the size bigger or smaller? I'll assume you are using a bit-banging (i2c-algo-bit) adatper here... It's true, if you use the call i2c_smbus_read_i2c_block_data(), the size is fixed at 32. This is enforced in these functions and in i2c_smbus_xfer_emulated(). You can avoid this limitation by making a direct call to i2c_transfer(), you should be able to find some drivers in the kernel that use i2c_transfer() as an example. If you have a proposal on a clean way to set the size on calls to i2c_smbus_read_i2c_block_data() we'll be happy to discuss it with you. mds Andre Fisser wrote: > Hi, > > are there plans to remove the fixed size of i2c block reads? I use the I2C > driver to communicate through the printer port with a kind of Philips dongle > to a custom microprocessor circuit. The fixed block size is wasting > bus-bandwidth which is a problem for me. > I'm planning to remove this limitation myself if there's nobody already > working on it. Maybe you guys have some advice for me how it can be best > done? > > Best regards, > Andre > > > Andr? Fisser > > Imtech ICT Technical Systems > Flight Forum 800, > 5657 DV Eindhoven > > Telephone +31 (0)40 8484444 > Fax +31 (0)40 8484440 > Email Andre.Fisser at Imtech.nl > www www.imtech.nl > > Imtech ICT is een full service ICT-dienstverlener die op een no-nonsense > manier bijdraagt aan het succes van haar klanten. Imtech ICT biedt > hoogwaardige dienstverlening op het gebied van projectmanagement, advies, > technische automatisering, informatisering en communicatietechnologie, en is > onderdeel van het beursgenoteerde Imtech. > > >
